Vulnerability · Published Jan 7, 2026 · Assigned by GitHub_M

CVE-2026-21684iccDEV has Undefined Behavior in CIccTagSpectralViewingConditions()

High 7.1

In plain English

A high-severity improper input validation in iccDEV from InternationalColorConsortium. Proof-of-concept exploit code is public. 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: poc

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 `CIccTagSpectralViewingConditions()`. 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-fg9m-j9x8-8279 x_refsource_CONFIRM
https://github.com/InternationalColorConsortium/iccDEV/issues/216 x_refsource_MISC
https://github.com/InternationalColorConsortium/iccDEV/pull/225 x_refsource_MISC