CVE-2026-34533 iccDEV: UB in CIccCalculatorFunc::ApplySequence()
A crafted ICC profile triggers undefined behavior in iccDEV, potentially causing crashes or code execution during color profile processing.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-34533?
CVE-2026-34533 is a medium-severity memory corruption vulnerability in Color Iccdev, published on 31 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
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.
Weakness: CWE-758
Which versions are affected by CVE-2026-34533?
It affects 1 product.
Products include Color Iccdev.
How do I fix CVE-2026-34533?
No fix has been published for CVE-2026-34533 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-34533 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34533 exists.
Other vulnerabilities in Color Iccdev
- CVE-2026-21675 iccDEV has a Use After Free vulnerability in CIccCmm class via improper hint manager object deletion
- CVE-2026-24405 iccDEV has Heap Buffer Overflow in CIccMpeCalculator::Read()
- CVE-2026-24406 iccDEV has Heap Buffer Overflow in CIccTagNamedColor2::SetSize()
- CVE-2026-24412 iccDEV has Heap Buffer Overflow in icCurvesFromXml()
- CVE-2026-22861 iccDEV has a heap-buffer-overflow in SIccCalcOp::Describe() at IccProfLib/IccMpeCalc.cpp
Sources
Also known as GHSA-8jj3-77m7-c3pq.