# CVE-2025-9386: tcpreplay: A vulnerability has been found in appneta tcpreplay up to 4.5.1

CVE-2025-9386 is fixed in tcpreplay on 1 platform, first by DEBIAN-CVE-2025-9386, released August 24, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-9386
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0025
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 24, 2025

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | tcpreplay Debian 14 | 4.5.2-1 | [DEBIAN-CVE-2025-9386](https://patchblox.com/security/data/fix/linux/debian-cve-2025-9386.md) | Aug 24, 2025 |
| Linux | tcpreplay opensuse-leap 16.0 | 4.5.2-bp160.1.1 | [OPENSUSE-SU-2025:20119-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20119-1.md) | Nov 27, 2025 |

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Data as of 2026-11-08T00:53:09Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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