# DLA-4181-1: glibc security update

DLA-4181-1, released May 27, 2025, fixes 1 CVE in glibc (version 2.31-13+deb11u13). None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/dla-4181-1
- Platform: Linux
- Released: May 27, 2025
- Priority: High (Closes CVE-2025-4802, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://security-tracker.debian.org/tracker/CVE-2025-4802

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [glibc](https://patchblox.com/security/data/product/linux/glibc.md) | Debian 11.6 (bullseye) | 2.31-13+deb11u13 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-4802](https://patchblox.com/security/data/cve/CVE-2025-4802.md) | High | Untrusted LD_LIBRARY_PATH environment variable vulnerability in the GNU C Library version 2.27 to 2.38 allows attacker controlled loading of dynamically shared library in statically compiled setuid binaries that call dlopen (including internal dlopen calls after setlocale or calls to NSS functions such as getaddrinfo). | 8.4 | 0.0059 |  |

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Data as of 2026-11-07T06:34:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo