Vulnerability · Published Mar 31, 2026 · Assigned by GitHub_M
CVE-2026-34533iccDEV: UB in CIccCalculatorFunc::ApplySequence()
Medium 6.2
In plain English
A medium-severity security flaw in iccDEV from InternationalColorConsortium. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| InternationalColorConsortium | iccDEV | < 2.3.1.6 |
Weakness: CWE-758 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H