What is CVE-2026-21673?

CVE-2026-21673 is a high-severity vulnerability in Internationalcolorconsortium Iccdev, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2026-01-06.

How severe is CVE-2026-21673?

High severity. CVSS v3 base score is 7.8 out of 10.

Integer overflow in Internationalcolorconsortium Iccdev

CVE-2026-21673

iccDEV provides a set of libraries and tools for working with ICC color management profiles. Versions 2.3.1 and below have overflows and underflows in CIccXmlArrayType::ParseTextCountNum(). This vulnerability affects users of the iccDEV l…

Vulnerability class: Integer Overflow

EPSS: 0.000 (3.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Internationalcolorconsortium Iccdev — versions < 2.3.1.1

Weakness classification (CWE)

References

https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-g66g-f82c-vgm6 (x_refsource_CONFIRM)
https://github.com/InternationalColorConsortium/iccDEV/issues/243 (x_refsource_MISC)
https://github.com/InternationalColorConsortium/iccDEV/commit/32740802ee14418bd14c429d7e2f142d92cd5c4f (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-21673?: CVE-2026-21673 is a high-severity vulnerability in Internationalcolorconsortium Iccdev, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2026-01-06.
How severe is CVE-2026-21673?: High severity. CVSS v3 base score is 7.8 out of 10.