CVE-2026-4367
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk3th percentile - higher than 3% of all known CVEs
Summary
A flaw was found in libXpm. A local user with low privileges could exploit an Out-of-Bounds Read vulnerability in the `xpmNextWord()` function by processing a specially crafted or very small XPM (X PixMap) image file. This improper validation of file boundaries can cause an internal pointer to read beyond the file's end, leading to application crashes and Denial of Service conditions.
Risk Assessment
Successful exploitation could cause application crashes, leading to a Denial of Service (DoS) condition on the local system.
Recommendation
Update libXpm to the latest patched version immediately. Until then, avoid processing untrusted or suspicious XPM files.
Other vulnerabilities in libXpm
See all- CVE-2016-10164Critical
Multiple integer overflows in libXpm before version 3.5.12 can lead to remote denial of service or arbitrary code execution. The issue occurs when a program requests parsing XPM extensions on a 64-bit platform, potentially causing a heap-based buffer overflow.
- CVE-2026-94287Medium
A denial of service via unsigned underflow in libXpm's write path before 3.5.19 could be used by local attackers to cause unbounded CPU usage and memory exhaustion.
Original NVD description (English source)
A flaw was found in libXpm. A local user with low privileges could exploit an Out-of-Bounds Read vulnerability in the `xpmNextWord()` function by processing a specially crafted or very small XPM (X PixMap) image file. This improper validation of file boundaries can cause an internal pointer to read beyond the file's end, leading to application crashes and Denial of Service conditions.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS