---
title: "CVE-2025-4802\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2025-4802?format=md
keywords: index, follow
---

# CVE-2025-4802

Publication date 16 May 2025

Last updated 26 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**7.8 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2025-4802?format=md#impact-score)

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## Description

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).

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| eglibc | 25.04 plucky | Not in release |
| 24.10 oracular | Not in release |
| 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release |
| 20.04 LTS focal | Not in release |
| 14.04 LTS trusty | Not affected |
| glibc | 25.04 plucky | Not affected |
| 24.10 oracular | Not affected |
| 24.04 LTS noble | Not affected |
| 22.04 LTS jammy | Fixed 2.35-0ubuntu3.10 |
| 20.04 LTS focal | Fixed 2.31-0ubuntu9.18 |
| 18.04 LTS bionic | Fixed 2.27-3ubuntu1.6+esm5  Ubuntu Pro |
| 16.04 LTS xenial | Not affected |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

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## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.8 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Local |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | Required |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.8 · High |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-4802)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2025-4802)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2025-4802)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2025-4802)

### Related Ubuntu Security Notices (USN)

+ [USN-7541-1](https://usn.ubuntu.com/USN-7541-1)
+ GNU C Library vulnerability
+ 28 May 2025

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2025-4802>
* <https://sourceware.org/bugzilla/show_bug.cgi?id=32976>
* <https://www.openwall.com/lists/oss-security/2025/05/17/2>
* <http://www.openwall.com/lists/oss-security/2025/05/16/7>
* <https://sourceware.org/cgit/glibc/commit/?id=1e18586c5820e329f741d5c710275e165581380e>
* <https://sourceware.org/cgit/glibc/commit/?id=5451fa962cd0a90a0e2ec1d8910a559ace02bba0>