CVE-2026-34537: iccDEV: UB in CIccOpDefEnvVar::Exec()

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-758

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 CIccOpDefEnvVar::Exec() due to invalid enum values being loaded for icSigCmmEnvVar. The issue is observable under UBSan as a “load of value … not a valid value for type icSigCmmEnvVar”, indicating an invalid enum/type value being consumed during ICC profile processing. 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

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