CVE-2026-21689

6.5 MEDIUM

📋 TL;DR

A type confusion vulnerability in iccDEV's CIccProfileXml::ParseBasic() function allows attackers to potentially execute arbitrary code or cause denial of service by processing malicious ICC color profiles. This affects all users of iccDEV library versions prior to 2.3.1.2 who handle ICC color profiles.

💻 Affected Systems

Products:
  • iccDEV library
Versions: All versions prior to 2.3.1.2
Operating Systems: All platforms using iccDEV
Default Config Vulnerable: ⚠️ Yes
Notes: Any application using iccDEV to parse ICC color profiles is vulnerable.

📦 What is this software?

⚠️ 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 management functionality.

🟢

If Mitigated

Limited impact with proper input validation and sandboxing, potentially just application instability.

🌐 Internet-Facing: MEDIUM - Requires processing of malicious ICC profiles which could be delivered via web uploads or email attachments.
🏢 Internal Only: LOW - Requires user interaction with malicious files or integration with untrusted data sources.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires crafting malicious ICC profiles and getting them processed by vulnerable systems.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.3.1.2

Vendor Advisory: https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-5rqc-w93q-589m

Restart Required: Yes

Instructions:

1. Update iccDEV to version 2.3.1.2 or later. 2. Recompile any applications using iccDEV. 3. Restart affected services.

🔧 Temporary Workarounds

No known workarounds

all

The advisory states no workarounds are available. Input validation may help but is not guaranteed.

🧯 If You Can't Patch

  • Isolate systems using iccDEV from untrusted networks and data sources.
  • Implement strict file upload validation and sandbox ICC profile processing.

🔍 How to Verify

Check if Vulnerable:

Check if iccDEV version is below 2.3.1.2 in your application dependencies or linked libraries.

Check Version:

Check build configuration or dependency files for iccDEV version reference.

Verify Fix Applied:

Verify iccDEV version is 2.3.1.2 or higher and applications have been recompiled with the updated library.

📡 Detection & Monitoring

Log Indicators:

  • Application crashes during ICC profile processing
  • Memory access violation errors in logs

Network Indicators:

  • Unusual file uploads with ICC extensions
  • Suspicious ICC profile downloads

SIEM Query:

Application logs containing 'iccDEV', 'CIccProfileXml', or 'ParseBasic' errors

🔗 References

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