Vulnerability · Published Jan 7, 2026 · Assigned by GitHub_M

CVE-2026-21686iccDEV has Undefined Behavior in CIccTagLutAtoB::Validate()

High 7.1

In plain English

A high-severity improper input validation in iccDEV from InternationalColorConsortium. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).

Severity (CVSS 3.1)7.1High

Exploit odds (30 days)0.3%top 78.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of International Color Consortium (ICC) color management profiles. Versions prior to 2.3.1.2 have Undefined Behavior in `CIccTagLutAtoB::Validate()`. This vulnerability affects users of the iccDEV library who process ICC color profiles. Version 2.3.1.2 contains a patch. No known workarounds are available.

Affected products (as reported)

Vendor	Product	Versions
InternationalColorConsortium	iccDEV	< 2.3.1.2

Weakness: CWE-20, CWE-758 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

References

https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-792q-cqq9-mq4x x_refsource_CONFIRM
https://github.com/InternationalColorConsortium/iccDEV/issues/214 x_refsource_MISC
https://github.com/InternationalColorConsortium/iccDEV/pull/222 x_refsource_MISC