CVE-2026-21693
📋 TL;DR
CVE-2026-21693 is a type confusion vulnerability in iccDEV's CIccSegmentedCurveXml::ToXml() function that could allow memory corruption when processing malicious ICC color profiles. This affects applications using iccDEV libraries for color management. Attackers could potentially execute arbitrary code or cause denial of service.
💻 Affected Systems
- iccDEV library
- Applications using iccDEV for ICC profile processing
📦 What is this software?
Iccdev by Color
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or ransomware deployment
Likely Case
Application crash or denial of service affecting color processing functionality
If Mitigated
Contained application crash with no privilege escalation if proper sandboxing exists
🎯 Exploit Status
Exploitation requires crafting malicious ICC profiles and getting them processed by vulnerable applications
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.3.1.2
Vendor Advisory: https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-v3q7-7hw6-6jq8
Restart Required: Yes
Instructions:
1. Identify applications using iccDEV. 2. Update iccDEV to version 2.3.1.2. 3. Rebuild applications with updated library. 4. Restart affected services.
🔧 Temporary Workarounds
No known workarounds
allThe vulnerability is in core library functionality with no configuration-based mitigations
🧯 If You Can't Patch
- Restrict processing of untrusted ICC profiles through application controls
- Implement sandboxing for applications using iccDEV to limit potential damage
🔍 How to Verify
Check if Vulnerable:
Check if applications link to iccDEV library version < 2.3.1.2 using ldd (Linux) or dependency walker toolsCheck Version:
Check library version in compiled binaries or use package manager: dpkg -l | grep iccdev or rpm -qa | grep iccdevVerify Fix Applied:
Verify iccDEV version is 2.3.1.2 or higher and applications have been rebuilt with updated library📡 Detection & Monitoring
Log Indicators:
- Application crashes during ICC profile processing
- Memory access violation errors in application logs
Network Indicators:
- Unusual ICC profile uploads to web applications
- Suspicious file transfers containing .icc/.icm files
SIEM Query:
Application:iccDEV AND (EventID:1000 OR ExceptionCode:c0000005) OR Process:*.exe AND FileExtension:(icc OR icm) FROM SuspiciousSource