---
title: "CVE-2025-29481\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-2025-29481?format=md
keywords: index, follow
---

# CVE-2025-29481

Publication date 7 April 2025

Last updated 4 March 2026

---

Ubuntu priority

**Negligible**

[Why this priority?](https://ubuntu.com/security/CVE-2025-29481?format=md#priority-reason )

## Cvss 3 Severity Score

**6.2 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2025-29481?format=md#impact-score)

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## Description

Buffer Overflow vulnerability in libbpf 1.5.0 allows a local attacker to
execute arbitrary code via the bpf\_object\_\_init\_prog` function of libbpf.
This has been disputed by third parties who assert that "no one in their
sane mind should be passing untrusted ELF files into libbpf while running
under root."

[Read the notes from the security team](https://ubuntu.com/security/CVE-2025-29481?format=md#notes)

### Why is this CVE negligible priority?

No security boundaries are crossed by this vulnerability

[Learn more about Ubuntu priority](https://ubuntu.com/security/cves/about#priority)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| dwarves-dfsg | 26.04 LTS resolute | Not in release |
| 25.10 questing | Not in release |
| 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 | Vulnerable |
| 18.04 LTS bionic | Vulnerable |
| 16.04 LTS xenial | Vulnerable |
| libbpf | 26.04 LTS resolute | Not affected |
| 25.10 questing | Not affected |
| 25.04 plucky | Ignored end of life, was needed |
| 24.10 oracular | Ignored end of life, was deferred [2025-11-24] |
| 24.04 LTS noble | Vulnerable |
| 22.04 LTS jammy | Vulnerable |
| 20.04 LTS focal | Vulnerable |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2025-29481?format=md#patch-details)

## Notes

---

### [0xnishit](https://launchpad.net/~0xnishit)

dwarves-dfsg embedded statically linked copy of libbpf 0.4

---

### [mdeslaur](https://launchpad.net/~mdeslaur)

Per this upstream thread, the security implication of this
issue is disputed, so this CVE is likely to get disputed also:
https://lore.kernel.org/bpf/CAEf4Bzb2S+1TonOp9UH86r0e6aGG2LEA4kwbQhJWr=9Xju=NEw@mail.gmail.com/
https://lore.kernel.org/bpf/67b2be76-e1db-4163-995c-57073f127d7a@redhat.com/
A fix is available, but downgrading priority to negligible as
using libbpf is a privileged operation so no security boundaries
are crossed

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| libbpf | * Upstream:   [ee684de](https://github.com/kernel-patches/bpf/commit/ee684de5c1b0) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

6.2 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 6.2 · Medium |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-29481)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2025-29481)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2025-29481)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2025-29481)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2025-29481>
* <https://github.com/lmarch2/poc/blob/main/libbpf/libbpf.md>