CVE-2026-34533: CWE-758: Reliance on Undefined, Unspecified, or Implementation-Defined Behavior in InternationalColorConsortium iccDEV
iccDEV provides a set of libraries and tools for working with ICC color management profiles. Prior to version 2.3.1.6, a crafted ICC profile can trigger Undefined Behavior (UB) in CIccCalculatorFunc::ApplySequence() due to invalid enum values being loaded for icChannelFuncSignature. The issue is observable under UBSan as a “load of value … not a valid value for type icChannelFuncSignature”, indicating a type/enum value confusion scenario during ICC profile processing. This issue has been patched in version 2.3.1.6.
AI Analysis
Technical Summary
The iccDEV library, used for handling ICC color management profiles, contains a vulnerability identified as CVE-2026-34533. Before version 2.3.1.6, processing a specially crafted ICC profile can cause undefined behavior in the function CIccCalculatorFunc::ApplySequence() because invalid enum values are loaded for icChannelFuncSignature. This enum value confusion leads to a type validation failure detected by UBSan, indicating a reliability issue in ICC profile parsing. The vulnerability has been addressed in iccDEV version 2.3.1.6.
Potential Impact
This vulnerability does not impact confidentiality or integrity but can cause denial of service through application crashes or instability when processing malicious ICC profiles. The CVSS score of 6.2 reflects a medium severity with local attack vector and no privileges required.
Mitigation Recommendations
Upgrade iccDEV to version 2.3.1.6 or later, where this issue has been patched. No other mitigations are specified or required.
CVE-2026-34533: CWE-758: Reliance on Undefined, Unspecified, or Implementation-Defined Behavior in InternationalColorConsortium iccDEV
Description
iccDEV provides a set of libraries and tools for working with ICC color management profiles. Prior to version 2.3.1.6, a crafted ICC profile can trigger Undefined Behavior (UB) in CIccCalculatorFunc::ApplySequence() due to invalid enum values being loaded for icChannelFuncSignature. The issue is observable under UBSan as a “load of value … not a valid value for type icChannelFuncSignature”, indicating a type/enum value confusion scenario during ICC profile processing. This issue has been patched in version 2.3.1.6.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The iccDEV library, used for handling ICC color management profiles, contains a vulnerability identified as CVE-2026-34533. Before version 2.3.1.6, processing a specially crafted ICC profile can cause undefined behavior in the function CIccCalculatorFunc::ApplySequence() because invalid enum values are loaded for icChannelFuncSignature. This enum value confusion leads to a type validation failure detected by UBSan, indicating a reliability issue in ICC profile parsing. The vulnerability has been addressed in iccDEV version 2.3.1.6.
Potential Impact
This vulnerability does not impact confidentiality or integrity but can cause denial of service through application crashes or instability when processing malicious ICC profiles. The CVSS score of 6.2 reflects a medium severity with local attack vector and no privileges required.
Mitigation Recommendations
Upgrade iccDEV to version 2.3.1.6 or later, where this issue has been patched. No other mitigations are specified or required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-03-30T16:03:31.048Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69cc45d1e6bfc5ba1d47e0bb
Added to database: 3/31/2026, 10:08:17 PM
Last enriched: 4/7/2026, 11:17:57 PM
Last updated: 5/16/2026, 8:00:32 AM
Views: 27
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