CVE-2026-21677 iccDEV has Undefined Behavior in CIccCLUT::Init()
Undefined behavior in CIccCLUT::Init can cause crashes or unexpected states in applications processing ICC profiles.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-21677?
CVE-2026-21677 is a high-severity vulnerability in Color Iccdev, published on 6 Jan 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
iccDEV provides a set of libraries and tools for working with ICC color management profiles. Versions 2.3.1 and below have Undefined Behavior in its CIccCLUT::Init function which initializes and sets the size of a CLUT. This issue is fixed in version 2.3.1.1.
Which versions are affected by CVE-2026-21677?
It affects 1 product.
Products include Color Iccdev.
How do I fix CVE-2026-21677?
No fix has been published for CVE-2026-21677 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-21677 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-21677 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-95w5-jvqf-3994.