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CVE-2025-15281— wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory

Quick assessment

Affected
The GNU C Library glibc
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GNU C Library是GNU社区的一种按照LGPL许可协议发布的开源免费的C语言编译程序。 GNU C Library 2.0版本至2.42版本存在安全漏洞，该漏洞源于调用wordexp时可能返回未初始化内存，可能导致进程中止。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.50% · P40

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2025-15281

Vulnerability Information
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Vulnerability Title
wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
对未经初始化资源的使用
Source: CVE Program / CVE List V5
Vulnerability Title
GNU C Library 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNU C Library是GNU社区的一种按照LGPL许可协议发布的开源免费的C语言编译程序。 GNU C Library 2.0版本至2.42版本存在安全漏洞，该漏洞源于调用wordexp时可能返回未初始化内存，可能导致进程中止。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
The GNU C Library glibc 2.0 ~ 2.42 -

II. Public POCs for CVE-2025-15281

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III. Intelligence Information for CVE-2025-15281

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IV. Related Vulnerabilities

Same product: glibc
Same vendor: The GNU C Library
Same weakness: CWE-908

V. Comments for CVE-2025-15281

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