Input validation error in ImageSharp - CVE-2025-54575
Published: July 30, 2025 / Updated: August 21, 2026
Vulnerability identifier: #VU144572
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-54575
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in the GIF decoder when skipping malformed comment extension blocks. A remote attacker can supply a specially crafted GIF image to cause a denial of service.
Affected software
ImageSharp
How to mitigate CVE-2025-54575
Install security update from vendor's website.
ImageSharp - addressed in versions 2.1.11, 3.1.11