CVE-2025-15281
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-20

Last updated on: 2026-02-05

Assigner: GNU C Library

Description
Calling wordexp with WRDE_REUSE in conjunction with WRDE_APPEND in the GNU C Library version 2.0 to version 2.42 may cause the interface to return uninitialized memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.
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Meta Information
Published
2026-01-20
Last Modified
2026-02-05
Generated
2026-06-16
AI Q&A
2026-01-20
EPSS Evaluated
2026-06-15
NVD
CVE-2025-15281
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
gnu glibc From 2.0 (inc) to 2.43 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-908 The product uses or accesses a resource that has not been initialized.
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Executive Summary

This vulnerability occurs when the wordexp function in GNU C Library versions 2.0 to 2.42 is called with the WRDE_REUSE flag together with WRDE_APPEND. It may cause the function to return uninitialized memory in the we_wordv member. Later, when wordfree is called on this uninitialized memory, it can cause the process to abort.

Impact Analysis

The impact of this vulnerability is that it can cause a program using the affected GNU C Library versions to abort unexpectedly when calling wordfree after wordexp returns uninitialized memory. This could lead to application crashes and potential denial of service.

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