CVE-2026-21680
📋 TL;DR
A NULL pointer dereference vulnerability in iccDEV library versions before 2.3.1.2 can cause application crashes or denial of service when processing ICC color profiles. This affects any software using the iccDEV library for color management operations. The vulnerability is triggered by malformed or specially crafted ICC color profiles.
💻 Affected Systems
- Any software using iccDEV library for ICC profile processing
📦 What is this software?
Iccdev by Color
⚠️ Risk & Real-World Impact
Worst Case
Application crash leading to denial of service, potentially disrupting color-critical workflows in design, printing, or imaging applications.
Likely Case
Application instability or crashes when processing malformed ICC profiles, causing workflow interruptions.
If Mitigated
Minimal impact with proper input validation and error handling in applications using the library.
🎯 Exploit Status
Exploitation requires providing a malicious ICC profile to an application using the vulnerable library. No public exploit code has been identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.3.1.2
Vendor Advisory: https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-mgp7-w4w3-mhx4
Restart Required: Yes
Instructions:
1. Update iccDEV library to version 2.3.1.2 or later. 2. Recompile any applications using the library. 3. Restart applications using the updated library.
🔧 Temporary Workarounds
Input validation for ICC profiles
allImplement strict validation of ICC profile files before processing
🧯 If You Can't Patch
- Implement strict file validation for all ICC profile inputs
- Isolate color profile processing to dedicated systems with limited privileges
🔍 How to Verify
Check if Vulnerable:
Check if applications link against iccDEV library version < 2.3.1.2 using ldd (Linux) or dependency walker toolsCheck Version:
Check library version in build configuration or use package manager: dpkg -l | grep iccdev (Debian/Ubuntu) or rpm -qa | grep iccdev (RHEL/CentOS)Verify Fix Applied:
Verify iccDEV library version is 2.3.1.2 or higher and applications have been recompiled with updated library📡 Detection & Monitoring
Log Indicators:
- Application crashes with segmentation faults when processing color profiles
- Error logs mentioning NULL pointer dereference in color management functions
Network Indicators:
- Unusual uploads of ICC profile files to applications
SIEM Query:
source="application_logs" AND ("segmentation fault" OR "NULL pointer" OR "iccdev")