Use of Uninitialized Resource Affecting glibc package, versions [2.0,2.43)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-UNMANAGED-GLIBC-15046713
- published21 Jan 2026
- disclosed20 Jan 2026
- creditVitaly Simonovich
Introduced: 20 Jan 2026
CVE-2025-15281 (opens in a new tab)How to fix?
Upgrade glibc to version 2.43 or higher.
Overview
Affected versions of this package are vulnerable to Use of Uninitialized Resource via the wordexp function when used with both WRDE_REUSE and WRDE_APPEND flags. An attacker can cause the interface to return uninitialized memory in the we_wordv member, potentially leading to process aborts on subsequent calls to wordfree by invoking the vulnerable function with these specific flags.