CVE-2025-27796 Memory corruption in GraphicsMagick

Medium 4.5 Published Updated

Attackers can trigger out-of-bounds heap memory access via crafted WPG images, potentially leading to code execution or crashes.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2025-27796?

CVE-2025-27796 is a medium-severity memory corruption vulnerability in Graphicsmagick Graphicsmagick, published on 7 Mar 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

ReadWPGImage in WPG in GraphicsMagick before 1.3.46 mishandles palette buffer allocation, resulting in out-of-bounds access to heap memory in ReadBlob.

Weakness: CWE-908

Which versions are affected by CVE-2025-27796?

It affects 1 product.

Products include Graphicsmagick Graphicsmagick.

How do I fix CVE-2025-27796?

Upgrade to a fixed version.

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

Is CVE-2025-27796 being exploited?

There is no known exploitation of CVE-2025-27796 in the wild and no public exploit code.

All Graphicsmagick Graphicsmagick vulnerabilities

Sources

Also known as DEBIAN-CVE-2025-27796, GHSA-v5xf-gj23-85jx, JLSEC-2026-494, ROOT-OS-ALPINE-322-CVE-2025-27796.

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