CVE-2026-21677
8.8International Color Consortium · iccDEV
A vulnerability in the CIccCLUT::Init function of iccDEV versions 2.3.1 and below allows for undefined behavior due to improper input validation during CLUT initialization.
Executive summary
A critical vulnerability in the International Color Consortium iccDEV library allows unauthenticated attackers to potentially trigger memory corruption, leading to high-impact consequences.
Vulnerability
The flaw exists in the CIccCLUT::Init function, which fails to properly validate input when setting the size of a Color Look Up Table (CLUT). This allows an unauthenticated attacker to trigger undefined behavior, which may result in full system compromise.
Business impact
The vulnerability carries a CVSS score of 8.8, reflecting its high potential for impact on confidentiality, integrity, and availability. Successful exploitation could allow an attacker to achieve arbitrary code execution or cause significant service disruption, potentially leading to unauthorized data access or complete system failure.
Remediation
Immediate Action: Update the iccDEV library to version 2.3.1.1 or later immediately to resolve the improper input validation flaw.
Proactive Monitoring: Monitor system logs for unusual application crashes or memory access errors that may indicate an attempt to trigger undefined behavior in color profile processing.
Compensating Controls: Deploy endpoint protection and memory safety tools that can detect and block anomalous memory allocation patterns within the library execution space.
Exploitation status
Public Exploit Available: Unknown.
Analyst recommendation
Given the severity of this vulnerability and the existence of proof-of-concept evidence, organizations using the iccDEV library must prioritize patching. Failure to update to version 2.3.1.1 leaves systems susceptible to high-impact attacks, and immediate remediation is strongly advised to maintain a secure posture.