CVE-2025-54575 - CVE House
Back to Database
Status published Medium CVE-2025-54575

ImageSharp Triggers an Infinite Loop in its GIF Decoder When Skipping Malformed Comment Extension Blocks

Vulnerability Description

ImageSharp is a 2D graphics library. In versions below 2.1.11 and 3.0.0 through 3.1.10, a specially crafted GIF file containing a malformed comment extension block (with a missing block terminator) can cause the ImageSharp GIF decoder to enter an infinite loop while attempting to skip the block. This leads to a denial of service. Applications processing untrusted GIF input should upgrade to a patched version. This issue is fixed in versions 2.1.11 and 3.1.11.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-54575

Credits & Attribution

No credits recorded in the NVD database.

References

More from SixLabors

View All →
CVE-2025-27598
Out-of-bounds Write in SixLabors ImageSharp
High 7.5
CVE-2024-41132
SixLabors ImageSharp Allows Excessive Memory Allocation in Gif Decoder
Medium 5.3
CVE-2024-41131
Out-of-bounds Write in SixLabors ImageSharp
High 7.5
CVE-2024-32036
SixLabors.ImageSharp vulnerable to data leakage
Medium 5.3
CVE-2024-32035
Memory Allocation with Excessive Size Value in SixLabors.ImageSharp
Medium 5.3

Affected Vendor

Affected Software

ImageSharp
Vulnerable Versions:
< 2.1.11, >= 3.0.0, < 3.1.11

Timeline

Official Publish: July 30th, 2025
Last Modified: July 30th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weaknesses (CWE)

CWE-400 CWE-770

MITRE ATT&CK TTPs

T1499 Endpoint Denial of Service
Impact
T1498 Network Denial of Service
Impact
T1190 Exploit Public-Facing Application
Initial Access
T1562 Impair Defenses
Defense Evasion
T1046 Network Service Discovery
Discovery