Links submitted by the Threat Radar community and AI curated for defenders.

Community Curated

NCSC UK

JVN Japan

GCP Compute Engine Security

GCP Kubernetes Security

AWS Security Bulletins

CERT/CC

Tenable Research

Google Project Zero

Microsoft Security Blog

Cisco Talos

Zero Day Initiative

Palo Alto Unit 42

Krebs on Security

Kaspersky Security Blog

Check Point Research

GCVE Database

CVE Database V5

AlienVault OTX General

Real-world exploitation and exposure telemetry from the OffSeq Mirage honeypot fleet and Sonar internet scans — which CVEs attackers are actually exploiting and which are exposed in the wild, plus attacker IoCs. All IPs are masked; no raw victim or sensor identity is ever published.

OffSeq Mirage

Bleeping Computer

SANS ISC Handlers Diary

SecurityWeek

Threatpost

Reddit ExploitDev

Latest exploits, shellcode, and vulnerability proofs-of-concept from Exploit-DB

Exploit-DB RSS Feed

Reddit ThreatIntel

Reddit BlueTeam

Reddit Malware

Reddit Reverse Engineering

Reddit NetSec

Reddit Cybersecurity

ThreatFox MISP Feed

CIRCL OSINT Feed

Reddit InfoSec News

The Hacker News

Dark Reading

AlienVault OTX Vulnerabilities

AlienVault OTX Malware

This update for libidn fixes the following issue:

- CVE-2026-57053: out-of-bounds read in `ToUnicode` APIs (bsc#1268965).

CVE-2026-57053 is a medium severity vulnerability in GNU libidn's idna_to_unicode_internal() function, which mishandles the ToUnicode APIs by assuming the internal buffer always starts with the "xn--" ACE prefix. When decoding pure ASCII labels shorter than four characters, no prefix is added, causing the function to read past the buffer's null terminator into uninitialized stack memory. This out-of-bounds read can lead to silent acceptance and normalization of invalid ACE-encoded labels, potentially affecting domain-based security decisions such as allow/deny-list matching, hostname comparisons, routing, and logging. The flaw does not impact libidn2, which properly guards against this condition. The vulnerability is tracked under CWE-125 (Out-of-bounds Read).

Detailed information about Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update affecting Red Hat Product Security Red Hat. Ge

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update - Live Threat Intelligence - Threat Radar | OffSeq.com

https://access.redhat.com/errata/RHSA-2026:42125

https://images.redhat.com/

https://access.redhat.com/security/cve/CVE-2026-57053

https://access.redhat.com/security/updates/classification/

Canonical URL

SUSE ratings

URL of this CSAF notice

SUSE Bug 1268965

SUSE CVE CVE-2026-57053 page

Security update for libidn

GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idna_to_unicode_internal. The affected code is not present in libidn2.

CVE-2026-57053 is a vulnerability in GNU libidn prior to version 1.44 involving improper validation of specified quantity in input (CWE-1284). Specifically, the ToUnicode APIs mishandle input in the idna_to_unicode_internal function, resulting in out-of-bounds reads of uninitialized memory. This vulnerability is not present in libidn2. The CVSS 3.1 base score is 4.0, reflecting a medium severity with local attack vector, high attack complexity, no privileges required, no user interaction, unchanged scope, no confidentiality impact, low integrity impact, and low availability impact. No known exploits are reported, and no official patch or remediation level has been disclosed.

Detailed information about CVE-2026-57053: CWE-1284 Improper Validation of Specified Quantity in Input in GNU libidn affecting GNU libidn. Get real-time updates

CVE-2026-57053: CWE-1284 Improper Validation of Specified Quantity in Input in GNU libidn - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2026-57053: CWE-1284 Improper Validation of Specified Quantity in Input in GNU libidn


Security update for libidnCVE-2026-57053 0 This update for libidn fixes the following issue: - CVE-2026-57053: out-of-bounds read in `ToUnicode` APIs (bsc#1268965). MediumVulnerability#gcve #csaf #cve-2026-57053 Join the discussion	GCVE Database	09/04/2026, 07:32:32 UTC Added: 08/01/2026, 08:14:07 UTC
CVE-2026-57053: CWE-1284 Improper Validation of Specified Quantity in Input in GNU libidnCVE-2026-57053 0 GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idna_to_unicode_internal. The affected code is not present in libidn2. MediumVulnerability#cve #cve-2026-57053 #cwe-1284 Join the discussion	CVE Database V5	06/23/2026, 16:40:22 UTC Added: 06/23/2026, 17:40:00 UTC

Threats Tagged 'cve-2026-57053'

Stop chasing alerts. Route them.

Check if your credentials are on the dark web

Filter Threats

Threats Tagged 'cve-2026-57053'

Lead Pen Test Professional