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CVE-2026-111131

6.1 · MEDIUM

libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c.

Published Oct 15, 2026CWE-125EPSS 0.20%

Overview

CVE-2026-111131 is a medium-severity vulnerability. It was published on October 15, 2026 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c. Attackers can supply a crafted headerless P61A module with 31 samples and a 0xffe0 back-reference size word to leak stack memory into sample metadata or disrupt loading.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/libxmp/libxmpGitHubgithub.com/libxmp/libxmp/blob/5d4f6aa2c7dcdf8e9cd8129fe579d45b36a302da/src/loaders/prowizard/p61a.c#L110-L116GitHubgithub.com/libxmp/libxmp/blob/5d4f6aa2c7dcdf8e9cd8129fe579d45b36a302da/src/loaders/prowizard/p61a.c#L638-L641Refhackmd.io/@haind-pwn/libxmp-p61a-sample-backreference-oob-readRefwww.vulncheck.com/advisories/libxmp-through-4.7.4-stack-out-of-bounds-read-via-p61a-depackerRefhackmd.io/@haind-pwn/libxmp-p61a-sample-backreference-oob-read

How CyberStrike helps

Frequently asked questions

What is CVE-2026-111131?

CVE-2026-111131 is a medium-severity vulnerability. It was published on October 15, 2026 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2026-111131?

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-111131?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-111131?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-111131 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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