CVE-2026-21503 iccDEV has Undefined Behavior - Null Pointer Passed to memcpy() in CIccTagSparseMatrixArray
A null pointer dereference in iccDEV can cause undefined behavior and denial of service when processing malformed ICC profiles.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-21503?
CVE-2026-21503 is a medium-severity vulnerability in Color Iccdev, published on 7 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, iccDEV has undefined behavior due to a null pointer passed to memcpy() in CIccTagSparseMatrixArray. This issue has been patched in version 2.3.1.2.
Which versions are affected by CVE-2026-21503?
It affects 1 product.
Products include Color Iccdev.
How do I fix CVE-2026-21503?
No fix has been published for CVE-2026-21503 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-21503 being exploited?
There is no known exploitation of CVE-2026-21503 in the wild and no public exploit code.
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-h554-qrfh-53gx.