CVE-2026-34533: iccDEV: UB in CIccCalculatorFunc::ApplySequence()
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 Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-34533?
CVE-2026-34533 has been classified with a severity rating that reflects potential risks from undefined behavior triggered by crafted ICC profiles.
How do I fix CVE-2026-34533?
To mitigate CVE-2026-34533, upgrade iccDEV to version 2.3.1.6 or later.
What type of vulnerability is CVE-2026-34533?
CVE-2026-34533 is categorized as an undefined behavior vulnerability due to invalid enum values in the CIccCalculatorFunc::ApplySequence() function.
Who is affected by CVE-2026-34533?
Users of iccDEV versions before 2.3.1.6 are affected by CVE-2026-34533.
What impact does CVE-2026-34533 have on systems?
CVE-2026-34533 can lead to unexpected behavior or crashes in applications utilizing vulnerable iccDEV libraries.