CVE-2026-34533

Name: CVE-2026-34533
Creator: NVD / NIST
Published: 2026-03-31T22:16:20.637+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.16%

Last modified Jun 17, 2026

CVE-2026-34533 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. iccDEV provides a set of libraries and tools for working with ICC color management profiles. Prior to version 2.3.1.6, a crafted ICC profile can trigger Undefined Behavior (UB) in CIccCalculatorFunc::ApplySequence() due to invalid enum values being loaded for icChannelFuncSignature. EPSS estimates a 0.16% chance of exploitation in the next 30 days.

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 ICC profile can trigger Undefined Behavior (UB) in CIccCalculatorFunc::ApplySequence() due to invalid enum values being loaded for icChannelFuncSignature. The issue is observable under UBSan as a “load of value … not a valid value for type icChannelFuncSignature”, indicating a type/enum value confusion scenario during ICC profile processing. This issue has been patched in version 2.3.1.6.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

0.16%

5.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-758

Affected Software

Vendor	Product	Versions
Color	Iccdev	< 2.3.1.6

References

https://github.com/InternationalColorConsortium/iccDEV/issues/664Exploit, Issue Tracking
https://github.com/InternationalColorConsortium/iccDEV/pull/681Issue Tracking, Patch
https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-8jj3-77m7-c3pqPatch, Vendor Advisory

Timeline

Published: Mar 31, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-34533?

How severe is CVE-2026-34533?

CVE-2026-34533 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.

How do I fix CVE-2026-34533?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-34533?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST