What is CVE-2026-21679?

CVE-2026-21679 is a high-severity vulnerability in Color Iccdev, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2026-01-07.

How severe is CVE-2026-21679?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Color Iccdev

CVE-2026-21679

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2026-01-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (28.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 28.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000

Affected products

Color Iccdev
Internationalcolorconsortium Iccdev — versions < 2.3.1.2

Weakness classification (CWE)

References

github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-h4wg-47… (Third Party Advisory)
github.com/InternationalColorConsortium/iccDEV/issues/328 (Exploit, Issue Tracking)
github.com/InternationalColorConsortium/iccDEV/pull/329 (Issue Tracking)
github.com/InternationalColorConsortium/iccDEV/commit/2eb25ab95f0db7664ec385039… (Patch)

Frequently asked questions

What is CVE-2026-21679?: CVE-2026-21679 is a high-severity vulnerability in Color Iccdev, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2026-01-07.
How severe is CVE-2026-21679?: High severity. CVSS v3 base score is 8.8 out of 10.