CVE-2026-21491
📋 TL;DR
A buffer overflow vulnerability in iccDEV's CIccTagTextDescription function allows attackers to execute arbitrary code or crash applications by processing specially crafted ICC color profiles. This affects all users of iccDEV library versions before 2.3.1.2 that handle untrusted ICC profiles.
💻 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 crashes causing denial of service, potentially leading to data corruption in color-sensitive applications.
If Mitigated
Limited impact with proper input validation and memory protections, possibly just crashes.
🎯 Exploit Status
Requires crafting specific ICC profile files; no public exploit code available yet.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.3.1.2
Vendor Advisory: https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-4pv4-4x2x-6j88
Restart Required: Yes
Instructions:
1. Download iccDEV 2.3.1.2 from official repository. 2. Replace existing iccDEV installation. 3. Recompile any applications using iccDEV. 4. Restart affected services.
🔧 Temporary Workarounds
Input Validation
allImplement strict validation of ICC profile files before processing
🧯 If You Can't Patch
- Restrict file uploads of ICC profiles to trusted sources only
- Implement application sandboxing or memory protection mechanisms
🔍 How to Verify
Check if Vulnerable:
Check iccDEV version; if <2.3.1.2, vulnerable. Review applications using iccDEV.Check Version:
iccdev --version or check library headersVerify Fix Applied:
Confirm iccDEV version is 2.3.1.2 or higher; test with known malicious ICC profiles.📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing ICC files
- Memory access violation errors
- Unusual file processing patterns
Network Indicators:
- Uploads of ICC profile files to vulnerable endpoints
SIEM Query:
source="application.log" AND ("segmentation fault" OR "buffer overflow" OR "ICC profile")🔗 References
- https://github.com/InternationalColorConsortium/iccDEV/commit/7c2cb719a9de1c00844e457e070d657314383ee3
- https://github.com/InternationalColorConsortium/iccDEV/commit/e91fe722ac54ce497d410153e7405090e0565d7b
- https://github.com/InternationalColorConsortium/iccDEV/issues/396
- https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-4pv4-4x2x-6j88
