CVE-2026-34537 iccDEV: UB in CIccOpDefEnvVar::Exec()

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 a...