CVE-2026-21673: color iccdev Integer Overflow or Wraparound

Vulnerability summary

CVE-2026-21673 is a high (CVSS 7.8) Integer Overflow or Wraparound vulnerability in color iccdev. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 06-01-2026
   PublishedVulnerability first disclosed.
2. 06-01-2026
   Last modifiedVulnerability information updated.

Description

iccDEV provides a set of libraries and tools for working with ICC color management profiles. Versions 2.3.1 and below have overflows and underflows in CIccXmlArrayType::ParseTextCountNum(). This vulnerability affects users of the iccDEV library who process ICC color profiles. This issue is fixed in version 2.3.1.1.

• CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
• CWE-681Incorrect Conversion between Numeric TypesWhen converting from one data type to another, such as long to integer, data can be omitted or translated in a way that produces unexpected values. If the resulting values are used in a sensitive context, then dangerous behaviors may occur.
• CWE-704Incorrect Type Conversion or CastThe product does not correctly convert an object, resource, or structure from one type to a different type.