# CVE-2025-9157: tcpreplay: A vulnerability was determined in appneta tcpreplay up to 4.5.2-beta2

CVE-2025-9157 is fixed in tcpreplay on 1 platform, first by DEBIAN-CVE-2025-9157, released August 19, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-9157
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0015
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 19, 2025

## Description

A vulnerability was determined in appneta tcpreplay up to 4.5.2-beta2. The impacted element is the function untrunc_packet of the file src/tcpedit/edit_packet.c of the component tcprewrite. Executing manipulation can lead to use after free. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. This patch is called 73008f261f1cdf7a1087dc8759115242696d35da. Applying a patch is advised to resolve this issue.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | tcpreplay Debian 14 | 4.5.2-1 | [DEBIAN-CVE-2025-9157](https://patchblox.com/security/data/fix/linux/debian-cve-2025-9157.md) | Aug 19, 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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