CVE-2026-34546: iccDEV: UB at TiffImg.h

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-03-31 · updated 2026-06-17
Weakness: CWE-369

Description

iccDEV provides a set of libraries and tools for working with ICC color management profiles. Prior to version 2.3.1.6, a crafted TIFF input can trigger Undefined Behavior (UB) due to division by zero in the TIFF handling code paths used by iccTiffDump. This issue has been patched in version 2.3.1.6.

Affected products

InternationalColorConsortium iccDEV: before 2.3.1.6 — fixed in 2.3.1.6

How to fix

Upgrade to a fixed version: InternationalColorConsortium iccDEV 2.3.1.6. Check the vendor advisory for mitigations.

References

https://github.com/InternationalColorConsortium/iccDEV/issues/719
https://github.com/InternationalColorConsortium/iccDEV/pull/723
https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-fxgq-wf5v-25pq

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