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CVE-2025-9385— appneta tcpreplay tcprewrite edit_packet.c fix_ipv6_checksums 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-2025-9385

Vulnerability Information
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Vulnerability Title
appneta tcpreplay tcprewrite edit_packet.c fix_ipv6_checksums use after free
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw has been found in appneta tcpreplay up to 4.5.1. The affected element is the function fix_ipv6_checksums of the file edit_packet.c of the component tcprewrite. This manipulation causes use after free. The attack is restricted to local execution. The exploit has been published and may be used. Upgrading to version 4.5.2-beta3 is sufficient to fix this issue. It is advisable to 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-2025-9385

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III. Intelligence Information for CVE-2025-9385

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Patches & Fixes for CVE-2025-9385 (1)

Other References for CVE-2025-9385 (1)

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

CVE-2025-9386 5.3 MEDIUM appneta tcpreplay tcprewrite get.c get_l2len_protocol 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-2025-9385

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