CVE-2026-34533CWE-758

iccDEV: UB in CIccCalculatorFunc::ApplySequence()

Medium · published March 31, 2026

CVSS v3.1
6.2
EPSS
0%
Percentile
6.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.2 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00174 · 6.5th percentile
Weakness
CWE-758 · Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
Published
2026-03-31T21:56Z
EPSS history
Timeline
  • 31 MAR 21:56Z
    iccDEV: UB in CIccCalculatorFunc::ApplySequence()
    cvelistv5