CVE-2026-34533 MEDIUM

CVE-2026-34533: iccDEV: UB in CIccCalculatorFunc::ApplySequence()

Vendor Internationalcolorconsortium
Product iccDEV
Weakness CWE-758
Published March 31, 2026
Last update April 3, 2026
View on NVD All CVEs

CVSS base score

6.2/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 31, 2026 CVE published
April 3, 2026 Record updated