CVE-2026-34548

Received Received - Intake

Undefined Behavior in iccDEV iccToXml Causes Data Corruption

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) condition in the XML conversion tooling path (iccToXml) caused by an implicit conversion from a negative signed integer to icUInt32Number (unsigned 32-bit), which changes the value. This issue has been patched in version 2.3.1.6.

CVSS Scores

EPSS Scores

Probability:
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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-2026-34548

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-681	When converting from one data type to another, such as long to integer, data can be omitted or translated in a way that produces unexpected values. If the resulting values are used in a sensitive context, then dangerous behaviors may occur.

Attack-Flow Graph

Executive Summary

This vulnerability exists in iccDEV, a set of libraries and tools for working with ICC color management profiles. Before version 2.3.1.6, there is an Undefined Behavior (UB) condition in the XML conversion tool called iccToXml. The issue arises due to an implicit conversion from a negative signed integer to an unsigned 32-bit integer (icUInt32Number), which changes the value unexpectedly. This can cause unpredictable behavior in the software.

Impact Analysis

The vulnerability can lead to undefined behavior in the affected software, which may cause crashes or other disruptions. According to the CVSS score (6.2), the impact is primarily on availability (A:H), meaning it can cause denial of service or make the software unavailable. There is no impact on confidentiality or integrity.

Compliance Impact

This vulnerability does not impact confidentiality or integrity of data, only availability. Therefore, it is unlikely to directly affect compliance with standards and regulations such as GDPR or HIPAA, which primarily focus on protecting personal data confidentiality and integrity.

Mitigation Strategies

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

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