---
title: "CVE-2025-9386\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-2025-9386?format=md
keywords: index, follow
---

# CVE-2025-9386

Publication date 24 August 2025

Last updated 11 September 2026

---

Ubuntu priority

**Low**

[Why this priority?](https://ubuntu.com/security/CVE-2025-9386?format=md#priority-reason )

## Cvss 3 Severity Score

**5.3 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2025-9386?format=md#impact-score)

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## Description

A vulnerability has been found in appneta tcpreplay up to 4.5.1. The
impacted element is the function get\_l2len\_protocol of the file get.c of
the component tcprewrite. Such manipulation leads to use after free. The
attack must be carried out locally. The exploit has been disclosed to the
public and may be used. Upgrading to version 4.5.2-beta3 is sufficient to
resolve this issue. You should upgrade the affected component.

### Why is this CVE low priority?

CLI tool crash only

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

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| tcpreplay | 26.04 LTS resolute | Needs evaluation |
| 25.10 questing | Ignored end of life, was needs-triage |
| 25.04 plucky | Ignored end of life, was needs-triage |
| 24.04 LTS noble | Needs evaluation |
| 22.04 LTS jammy | Needs evaluation |
| 20.04 LTS focal | Needs evaluation |
| 18.04 LTS bionic | Needs evaluation |
| 16.04 LTS xenial | Needs evaluation |

---

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

## Severity score breakdown

CVSS version:

CVSS v4.0

[CVSS v4.0](https://ubuntu.com/security/CVE-2025-9386?format=md)
[CVSS v3.0](https://ubuntu.com/security/CVE-2025-9386?format=md)

**Base score**

1.9 · Low

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Local |
  | Attack complexity | Low |
  | Attack requirements | None |
  | Privileges required | Low |
  | User interaction | None |
  | Vulnerable system - Confidentiality impact | Low |
  | Vulnerable system - Integrity impact | Low |
  | Vulnerable system - Availability impact | Low |
  | Subsequent system - Confidentiality impact | None |
  | Subsequent system - Integrity impact | None |
  | Subsequent system - Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 1.9 · Low |
  | Base + Threat score | - |
  | Base + Environmental score | - |
  | Base + Threat + Environmental score | - |

**Vector:** CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-9386)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2025-9386)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2025-9386)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2025-9386)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2025-9386>
* <https://drive.google.com/file/d/1DcQWaTmj1HSbRidOCWwe9vtgHsBnFuX7/view?usp=sharing>
* <https://vuldb.com/?ctiid.321219>
* <https://vuldb.com/?id.321219>
* <https://vuldb.com/?submit.630498>