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.
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Meta Information
Published
2026-03-31
Last Modified
2026-04-20
Generated
2026-06-16
AI Q&A
2026-04-01
EPSS Evaluated
2026-06-15
NVD
CVE-2026-34548
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
color iccdev to 2.3.1.6 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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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.
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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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