Is CVE-2026-4367 in the CISA KEV catalog?

No. CVE-2026-4367 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-4367?

CVE-2026-4367 has a CVSS v3 base score of 5.5 (Moderate).

What is the EPSS score for CVE-2026-4367?

CVE-2026-4367 has an EPSS score of 0.13% (3th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-4367?

Upgrade libxpm on debian unstable to 1:3.5.19-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2026-4367

MEDIUM

5.5

CVSS v3

NVD

Description

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.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

libxpmDebian

Fixed in:1:3.5.19-1CVE-2026-4367

libxpmRocky

Fixed in:main@aarch64RHSA-2026:30354

Fixed in:main@srcRHSA-2026:30354

Fixed in:main@x86_64RHSA-2026:30354

libxpmRed Hat / RHEL

Fixed in:main@aarch64RHSA-2026:30354

Fixed in:main@srcRHSA-2026:30354

Fixed in:main@x86_64RHSA-2026:30354

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.13%probability of exploitation in 30 days

3rdpercentile

Low risk: more likely to be exploited than 3% of all known CVEs.

References

Other references6

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-26.