CVE-2026-41254

MEDIUM

Published Apr 18, 2026 Modified May 7, 2026 CWE-696 CWE-190

Description

Little CMS (lcms2) through 2.18 has an integer overflow in CubeSize in cmslut.c because the overflow check is performed after the multiplication.

CVSS v3.1 Score

4.0

MEDIUM

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

EPSS — Exploit Prediction

0.0003

Probability of exploitation

0.09%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-696 CWE-696

CWE-190 Integer Overflow

Affected Products

Vendor	Product	Versions
littlecms	little_cms	< 2.18

References

Advisories & Patches

https://github.com/mm2/Little-CMS/commit/da6110b1d14abc394633a388209abd5ebedd7ab0 https://github.com/mm2/Little-CMS/commit/e0641b1828d0a1af5ecb1b11fe22f24fceefd4bc

Exploits

https://abhinavagarwal07.github.io/posts/lcms2-cubesize-overflow/

Other References

https://github.com/mm2/Little-CMS/security/advisories/GHSA-4xp6-rcgg-m9qq https://www.openwall.com/lists/oss-security/2026/04/17/16 https://lists.debian.org/debian-lts-announce/2026/05/msg00014.html

Frequently Asked Questions

What is CVE-2026-41254? +

Little CMS (lcms2) through 2.18 has an integer overflow in CubeSize in cmslut.c because the overflow check is performed after the multiplication. It has a CVSS v3.1 base score of 4.0 (MEDIUM).

How severe is CVE-2026-41254? +

CVE-2026-41254 has a CVSS v3.1 score of 4.0 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0003, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-41254? +

CVE-2026-41254 affects products from littlecms, specifically: little_cms. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-41254? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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Quick Facts

CVSS Score: 4.0
Severity: MEDIUM
EPSS: 0.0003
Published: Apr 18, 2026

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