CVE-2025-29069 Memory corruption in n/a

High 7.3 Published Updated

A heap buffer overflow in LCMS2's color space transformation allows attackers to potentially execute code or cause denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-29069?

CVE-2025-29069 is a high-severity memory corruption vulnerability in n/a, published on 1 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A heap buffer overflow vulnerability has been identified in the lcms2-2.16. The vulnerability exists in the UnrollChunkyBytes function in cmspack.c, which is responsible for handling color space transformations. NOTE: this is disputed by the Supplier because the finding identified a bug in a third-party calling program, not in lcms.

Weakness: CWE-122

Which versions are affected by CVE-2025-29069?

How do I fix CVE-2025-29069?

No fix has been published for CVE-2025-29069 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-29069 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-29069 exists.

Sources

Also known as GHSA-w9qw-39gf-jp7r.

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