CVE-2026-34537: 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 CIccOpDefEnvVar::Exec() due to invalid enum values being loaded for icSigCmmEnvVar. The issue is observable under UBSan as a “load of value … not a valid value for type icSigCmmEnvVar”, indicating an invalid enum/type value being consumed 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 (CVE-2026-34537) where processing a specially crafted ICC profile can cause undefined behavior. This occurs because invalid enum values are loaded for the icSigCmmEnvVar type in the CIccOpDefEnvVar::Exec() function. The undefined behavior is observable under UBSan as an invalid load of enum values. This flaw affects versions prior to 2.3.1.6 and has been fixed in that version.
Potential Impact
The vulnerability leads to undefined behavior during ICC profile processing, which can cause application instability or crashes (availability impact). There is no indication of confidentiality or integrity impact. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade iccDEV to version 2.3.1.6 or later, where this vulnerability has been patched. No other mitigation is required as the issue is resolved in the official fix.
CVE-2026-34537: 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 CIccOpDefEnvVar::Exec() due to invalid enum values being loaded for icSigCmmEnvVar. The issue is observable under UBSan as a “load of value … not a valid value for type icSigCmmEnvVar”, indicating an invalid enum/type value being consumed 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 (CVE-2026-34537) where processing a specially crafted ICC profile can cause undefined behavior. This occurs because invalid enum values are loaded for the icSigCmmEnvVar type in the CIccOpDefEnvVar::Exec() function. The undefined behavior is observable under UBSan as an invalid load of enum values. This flaw affects versions prior to 2.3.1.6 and has been fixed in that version.
Potential Impact
The vulnerability leads to undefined behavior during ICC profile processing, which can cause application instability or crashes (availability impact). There is no indication of confidentiality or integrity impact. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade iccDEV to version 2.3.1.6 or later, where this vulnerability has been patched. No other mitigation is required as the issue is resolved in the official fix.
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: 69cc45d1e6bfc5ba1d47e0e0
Added to database: 3/31/2026, 10:08:17 PM
Last enriched: 4/7/2026, 11:18:09 PM
Last updated: 5/16/2026, 2:41:37 AM
Views: 73
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