CVE-2026-21679: iccDEV has heap-buffer-overflow vulnerability in CIccLocalizedUnicode::GetText()

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-01-07 · updated 2026-06-17
Weakness: CWE-20

Description

iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, iccDEV is vulnerable to heap-buffer-overflow in CIccLocalizedUnicode::GetText(). This issue has been patched in version 2.3.1.2.

Affected products

InternationalColorConsortium iccDEV: before 2.3.1.2 — fixed in 2.3.1.2

How to fix

Upgrade to a fixed version: InternationalColorConsortium iccDEV 2.3.1.2. Check the vendor advisory for mitigations.

References

https://github.com/InternationalColorConsortium/iccDEV/commit/2eb25ab95f0db7664ec3850390b6f89e302e7039
https://github.com/InternationalColorConsortium/iccDEV/issues/328
https://github.com/InternationalColorConsortium/iccDEV/pull/329
https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-h4wg-473g-p5wc

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