CVE-2026-21507 iccDEV is Vulnerable to Denial of Service via Infinite Loop in CalcProfileID()

High 7.5 Published Updated

An infinite loop in CalcProfileID allows attackers to cause a denial of service in applications using the iccDEV library.

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-2026-21507?

CVE-2026-21507 is a high-severity denial of service 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 have an infinite loop in the IccProfile.cpp function, CalcProfileID. This issue is fixed in version 2.3.1.1.

Weakness: CWE-835

Which versions are affected by CVE-2026-21507?

It affects 1 product.

Products include Color Iccdev.

How do I fix CVE-2026-21507?

No fix has been published for CVE-2026-21507 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-2026-21507 being exploited?

There is no known exploitation of CVE-2026-21507 in the wild and no public exploit code.

All Color Iccdev vulnerabilities

Sources

Also known as GHSA-hgp5-r8m9-8qpj.

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