CVE-2026-4367
Naoki Wakamatsu discovered that libXpm did not properly validate file boundaries when processing XPM image files. An attacker could possibly use this issue to cause libXpm to crash, resulting in a denial of service.
CSIRTS triage
- What
- Improper validation of file boundaries can cause libXpm to crash.
- Who is affected
- Users of libXpm.
- Urgency
- Remediation is needed to avoid denial of service incidents.
- Action
- Update libXpm to a patched version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Advisory coverage (3)
- medium[UPDATE] [medium] OpenBSD: Vulnerability allows unspecified attackcert-bund · 2026-07-28
- unknownUSN-8600-1: libXpm vulnerabilityubuntu · 2026-07-23
- mediumCVE-2026-4367: Libxpm: libxpm: denial of service via out-of-bounds read in xpm file parsingmsrc · 2026-06-09
External references
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