CVE-2026-34546 iccDEV: UB at TiffImg.h
A crafted TIFF file can cause a division by zero error in iccDEV, leading to a denial of service condition.
- 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-2026-34546?
CVE-2026-34546 is a medium-severity denial of service 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 TIFF input can trigger Undefined Behavior (UB) due to division by zero in the TIFF handling code paths used by iccTiffDump. This issue has been patched in version 2.3.1.6.
Weakness: CWE-369
Which versions are affected by CVE-2026-34546?
It affects 1 product.
Products include Color Iccdev.
How do I fix CVE-2026-34546?
No fix has been published for CVE-2026-34546 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-34546 being exploited?
There is no known exploitation of CVE-2026-34546 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-fxgq-wf5v-25pq.