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CVE-2025-9386— appneta tcpreplay tcprewrite get.c get_l2len_protocol use after free

Quick assessment

Affected
appneta tcpreplay
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Appneta Tcpreplay是美国Appneta公司的一套基于UNIX操作系统用于编辑和重放网络流量的开源实用程序。 Appneta Tcpreplay 4.5.1及之前版本存在安全漏洞，该漏洞源于释放后重用，可能需要本地执行。

CVSS 5.3 · Medium EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2025-9386

Vulnerability Information
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Vulnerability Title
appneta tcpreplay tcprewrite get.c get_l2len_protocol use after free
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Appneta Tcpreplay 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Appneta Tcpreplay是美国Appneta公司的一套基于UNIX操作系统用于编辑和重放网络流量的开源实用程序。 Appneta Tcpreplay 4.5.1及之前版本存在安全漏洞，该漏洞源于释放后重用，可能需要本地执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
appneta tcpreplay 4.5.0 -

II. Public POCs for CVE-2025-9386

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III. Intelligence Information for CVE-2025-9386

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Vendor Advisories for CVE-2025-9386 (1)

Other References for CVE-2025-9386 (1)

Same Patch Batch · appneta · 2025-08-24 · 3 CVEs total

CVE-2025-9385 5.3 MEDIUM appneta tcpreplay tcprewrite edit_packet.c fix_ipv6_checksums use after free
CVE-2025-9384 3.3 LOW appneta tcpreplay parse_args.c tcpedit_post_args null pointer dereference

IV. Related Vulnerabilities

Same product: tcpreplay
Same vendor: appneta
Same weakness: CWE-416

V. Comments for CVE-2025-9386

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