CVE-2026-21676: Color Iccdev

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

iccDEV provides a set of libraries and tools for working with ICC color management profiles. Versions 2.3.1 and below have a Heap-based Buffer Overflow in its CIccMBB::Validate function which checks tag data validity. This issue is fixed in version 2.3.1.1.

Affected products

• Color Iccdev: before 2.3.1.1 (fixed in 2.3.1.1)

Published 2026-01-06. Last modified 2026-06-17.