CVE-2026-21693

8.8

International Color Consortium · iccDEV

A type confusion vulnerability exists in the iccDEV library within the CIccSegmentedCurveXml::ToXml function, potentially allowing for arbitrary code execution or system compromise.

Executive summary

The iccDEV library, used for ICC color profile management, contains a critical type confusion vulnerability in versions prior to 2.3.1.2 that could lead to full system compromise.

Vulnerability

This vulnerability is a type confusion flaw located in the CIccSegmentedCurveXml::ToXml() function within the IccMpeXml.cpp file. It can be triggered by an unauthenticated attacker when the library processes a maliciously crafted ICC color profile.

Business impact

The exploitation of this vulnerability can result in full system compromise, including unauthorized data access, integrity loss, or denial of service. Given the CVSS score of 8.8, this flaw represents a high risk to organizational security, particularly for applications that rely on this library to process user-supplied image or color data.

Remediation

Immediate Action: Update the iccDEV library to version 2.3.1.2 or later immediately to incorporate the necessary security patches.

Proactive Monitoring: Monitor application logs for unexpected crashes or errors occurring during the processing of ICC color profiles, which may indicate exploitation attempts.

Compensating Controls: Implement input validation routines to sanitize ICC profiles before they are passed to the iccDEV library, and ensure the application runs with the least privilege necessary to limit potential impact.

Exploitation status

Public Exploit Available: Unknown

Analyst recommendation

Organizations utilizing the iccDEV library must prioritize upgrading to version 2.3.1.2 to eliminate this type confusion vulnerability. Failure to patch leaves systems exposed to potential arbitrary code execution when processing untrusted color profiles, and administrators should verify that all downstream dependencies are also updated to the secure version.

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