What is CVE-2026-42798?

CVE-2026-42798 is a medium-severity vulnerability in Littlecms Little Cms Color Engine, classified under Integer Overflow or Wraparound. CVSS score: 4.0/10. Published 2026-04-30.

How severe is CVE-2026-42798?

Medium severity. CVSS v3 base score is 4.0 out of 10.

Integer overflow in Littlecms Little Cms Color Engine

CVE-2026-42798

Little CMS (lcms2) 2.16 through 2.18 before 2.19 has an integer overflow in ParseCube in cmscgats.c.

Vulnerability class: Integer Overflow

EPSS: 0.000 (4.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L.

Affected products

Littlecms Little Cms Color Engine — versions 2.16

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

cve@mitre.org
cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2026-42798?: CVE-2026-42798 is a medium-severity vulnerability in Littlecms Little Cms Color Engine, classified under Integer Overflow or Wraparound. CVSS score: 4.0/10. Published 2026-04-30.
How severe is CVE-2026-42798?: Medium severity. CVSS v3 base score is 4.0 out of 10.