CVE-2026-21675 iccDEV has a Use After Free vulnerability in CIccCmm class via improper hint manager object deletion
A use-after-free flaw in iccDEV allows attackers to potentially execute arbitrary code or cause denial of service via crafted ICC profiles.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-21675?
CVE-2026-21675 is a critical use after free vulnerability in Color Iccdev, published on 6 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
iccDEV provides a set of libraries and tools for working with ICC color management profiles. Versions 2.3.1 and below contain a Use After Free vulnerability in the CIccXform::Create() function, where it deletes the hint. This issue is fixed in version 2.3.1.1.
Which versions are affected by CVE-2026-21675?
It affects 1 product.
Products include Color Iccdev.
How do I fix CVE-2026-21675?
No fix has been published for CVE-2026-21675 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-21675 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-21675 exists.
Other vulnerabilities in Color Iccdev
- 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
- CVE-2026-22255 iccDEV has heap-buffer-overflow in CIccCLUT::Init() at IccProfLib/IccTagLut.cpp
Sources
Also known as GHSA-wcwx-794g-g78f.