Undefined Behavior in iccDEV IccTagLut.cpp via Null Pointer Access

Publication date: 2026-03-31

Last updated on: 2026-04-20

Assigner: GitHub, Inc.

Description

iccDEV provides a set of libraries and tools for working with ICC color management profiles. Prior to version 2.3.1.6, there is an Undefined Behavior (UB) issue in IccTagLut.cpp where the code performs member access through a null pointer of type CIccApplyCLUT. This issue has been patched in version 2.3.1.6.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-03-31

Last Modified

2026-04-20

Generated

2026-07-06

AI Q&A

2026-04-01

EPSS Evaluated

2026-07-05

NVD

CVE-2026-34552

Affected Vendors & Products

Vendor	Product	Version / Range
color	iccdev	to 2.3.1.6 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-476	The product dereferences a pointer that it expects to be valid but is NULL.

Attack-Flow Graph

Executive Summary

This vulnerability exists in iccDEV, a set of libraries and tools for ICC color management profiles. Before version 2.3.1.6, there is an Undefined Behavior issue in the file IccTagLut.cpp where the code attempts to access a member through a null pointer of the type CIccApplyCLUT. This means the program tries to use an object that has not been properly initialized, which can lead to unpredictable behavior or crashes.

Impact Analysis

The impact of this vulnerability is primarily availability-related. Since the issue involves undefined behavior caused by dereferencing a null pointer, it can lead to application crashes or denial of service. The CVSS score indicates a moderate severity with an impact on availability but no direct impact on confidentiality or integrity.

Mitigation Strategies

To mitigate this vulnerability, you should update iccDEV to version 2.3.1.6 or later, where the issue has been patched.

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