CVE-2026-34539 iccDEV: HBO in CTiffImg::WriteLine()

What is CVE-2026-34539?

CVE-2026-34539 is a medium-severity vulnerability in Color Iccdev, published on 31 Mar 2026.

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 and TIFF input can trigger a heap-buffer-overflow (HBO) in CTiffImg::WriteLine(). The issue is observable under AddressSanitizer as an out-of-bounds heap read when running iccSpecSepToTiff on a malicious .icc + .tif pair, leading to a crash during TIFF strip writing. This issue has been patched in version 2.3.1.6.

Weakness: CWE-122

Which versions are affected by CVE-2026-34539?

It affects 1 product.

Products include Color Iccdev.

How do I fix CVE-2026-34539?

No fix has been published for CVE-2026-34539 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-34539 being exploited?

There is no known exploitation of CVE-2026-34539 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 Critical 9.8
• CVE-2026-24405 iccDEV has Heap Buffer Overflow in CIccMpeCalculator::Read() High 8.8
• CVE-2026-24406 iccDEV has Heap Buffer Overflow in CIccTagNamedColor2::SetSize() High 8.8
• CVE-2026-24412 iccDEV has Heap Buffer Overflow in icCurvesFromXml() High 8.8
• CVE-2026-22861 iccDEV has a heap-buffer-overflow in SIccCalcOp::Describe() at IccProfLib/IccMpeCalc.cpp High 8.8

All Color Iccdev vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-4f3j-q8mm-5hr6.