A missing validation of a user-controlled value in the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an adjacent network attacker to tamper with log timestamps via crafted UDP Sync command. This could result in forged or nonsensical datetime prefixes and compromising log integrity and forensic correlation.
An out-of-bounds read vulnerability in the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows a remote attacker to leak stack memory and cause a denial of service via a crafted request. The leaked stack memory could be used to bypass ASLR remotely and facilitate exploitation of other vulnerabilities on the affected system.
An out-of-bounds read vulnerability in the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an attacker on the adjacent network to cause information disclosure or denial-of-service via a special crafted packet. The leaked memory could be used to bypass ASLR and facilitate further exploitation.
An integer underflow in the UDP command handler of the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an adjacent network attacker to trigger a heap-based buffer overflow and cause a denial-of-service (service crash) via specially crafted UDP packets.
A vulnerability in TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an attacker on the adjacent network to inject, tamper with, or forge log entries in \Nomad Branch.log via crafted data sent to the UDP network handler. This can impact log integrity and nonrepudiation.
A vulnerability in TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an attacker on the adjacent network to cause the NomadBranch.exe process to terminate via crafted requests. This can result in a denial-of-service condition of the Content Distribution Service.
A vulnerability in TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an attacker on the adjacent network to cause normally encrypted UDP traffic to be sent in cleartext. This can result in disclosure of sensitive information.
The Access Manager is offering a trace functionality to debug errors and issues with the device. The trace functionality is implemented as a simple TCP socket. A tool called TraceClient.exe, provided by dormakaba via the Access Manager web interface, is used to connect to the socket and receive debug information. The data is permanently broadcasted on the TCP socket. The socket can be accessed without any authentication or encryption.
The transmitted data is based on the set verbosity level. The verbosity level can be set using the http(s) endpoint with the service interface password or with the guessable identifier of the device via the SOAP interface.
The transmitted data contains sensitive data like the Card ID as well as all button presses on Registration units. This allows an attacker with network level access to retrieve all entered PINs on a registration unit.
The default password for the extended admin user mode in the application U9ExosAdmin.exe ("Kaba 9300 Administration") is hard-coded in multiple locations as well as documented in the locally stored user documentation.
A local privilege escalation vulnerability has been identified in the Kaba exos 9300 System management application (d9sysdef.exe). Within this application it is possible to specify an arbitrary executable as well as the weekday and start time, when the specified executable should be run with SYSTEM privileges.
An RPC service, which is part of exos 9300, is reachable on port 4000, run by the process FSMobilePhoneInterface.exe. This service is used for interprocess communication between services and the Kaba exos 9300 GUI, containing status information about the Access Managers. Interacting with the service does not require any authentication. Therefore, it is possible to send arbitrary status information about door contacts etc.without prior authentication.
This analysis examines Infostealer malware trends during December 2025, focusing on distribution methods, volume, and disguising techniques. Key findings include the prevalence of ACRStealer, LummaC2, and Stealc Infostealers, with malware primarily distributed through SEO poisoning and compromised legitimate websites. The report highlights two significant trends: the abuse of Python scripts for malware distribution and the emergence of cryptocurrency-stealing malware using Tor. Distribution methods evolved from direct blog posts to leveraging legitimate websites and forums. The analysis also notes a shift in malware execution methods, with 65.8% distributed as EXE files and 34.2% using DLL Sideloading techniques. The report emphasizes the importance of vigilance against these evolving threats and provides detailed insights into the malware's behavior and infrastructure.
Entrust Instant Financial Issuance (IFI) On Premise software (formerly referred to as CardWizard) versions 5.x, prior to 6.10.5, and prior to 6.11.1 contain an insecure .NET Remoting exposure in the SmartCardController service (DCG.SmartCardControllerService.exe). The service registers a TCP remoting channel with unsafe formatter/settings that permit untrusted remoting object invocation. A remote, unauthenticated attacker who can reach the remoting port can invoke exposed remoting objects to read arbitrary files from the server and coerce outbound authentication, and may achieve arbitrary file write and remote code execution via known .NET Remoting exploitation techniques. This can lead to disclosure of sensitive installation and service-account data and compromise of the affected host.
A sophisticated cryptocurrency theft operation, orchestrated by the threat actor 'RedLineCyber', has been uncovered. The actor distributes a malicious executable named 'Pro.exe', a Python-based clipboard hijacking trojan designed for silent cryptocurrency theft. This malware continuously monitors the Windows clipboard for cryptocurrency wallet addresses and substitutes them with attacker-controlled addresses. The threat actor exploits trust within Discord communities focused on gaming, gambling, and cryptocurrency streaming. The malware demonstrates moderate technical complexity, using obfuscated Python bytecode and base64-encoded regular expressions for wallet detection. It targets cryptocurrency streamers, casino gaming communities, and users who frequently handle digital asset transactions during live broadcasts. The operation has successfully compromised multiple victims across six major cryptocurrencies.
SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, there is a Untrusted Search Path vulnerability when Advanced Options setting is trigger. The application executes notepad.exe without specifying an absolute path when using the Advanced Options setting. On Windows, this allows execution of a malicious notepad.exe placed in the application's installation directory, leading to arbitrary code execution.
Threat actors exploited Cloudflare's free-tier infrastructure and Python environments to deploy AsyncRAT, demonstrating advanced evasion techniques. The attack begins with phishing emails containing Dropbox links to malicious files. It uses legitimate Python downloads and sophisticated code injection targeting explorer.exe. The campaign ensures persistence through multiple vectors, including startup folder scripts and WebDAV mounting. It abuses trusted infrastructure like Cloudflare to mask activities and evade detection. The attackers employ social engineering tactics, such as displaying legitimate PDF documents, to reduce suspicion. This campaign highlights the trend of abusing cloud services for malware delivery and execution, emphasizing the need for multi-layered security approaches.
The PHALT#BLYX campaign targets the hospitality sector using sophisticated social engineering and advanced techniques. It begins with a phishing email mimicking a Booking.com reservation cancellation, leading victims to a fake website. Users are tricked into executing malicious PowerShell commands through a fake BSOD and click-fix social engineering tactic. The malware leverages MSBuild.exe to bypass defenses and deploys a customized DCRat payload. It establishes persistence, disables Windows Defender, and uses process hollowing to inject into legitimate processes. The campaign shows evolution from earlier, simpler methods and demonstrates a deep understanding of modern endpoint protection. Attribution points to Russian-speaking threat actors, given the presence of Cyrillic debug strings and the use of DCRat, a popular tool in Russian underground forums.
ASEC discovered Guloader malware being distributed through phishing emails masquerading as employee performance reports. The emails, claiming to be about October 2025 performance, contain a RAR file with an NSIS executable named 'staff record pdf.exe'. This file is actually Guloader malware, which downloads and executes shellcode from a Google Drive URL. The final payload is Remcos RAT, enabling threat actors to perform various malicious remote control activities, including keylogging, screenshot capture, webcam and microphone control, and browser data extraction. The attackers are increasingly using legitimate platforms as C2 servers, making detection more challenging. Users are advised to exercise caution when opening emails from unknown sources and to change passwords regularly to prevent secondary damage.
Exposure of Sensitive Information to an Unauthorized Actor, Missing Encryption of Sensitive Data, Files or Directories Accessible to External Parties vulnerability in Kings Information & Network Co. KESS Enterprise on Windows allows Privilege Escalation, Modify Existing Service, Modify Shared File.This issue affects KESS Enterprise: before *.25.9.19.exe
