CVE-2025-9019 - CVE House
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Status published Low CVE-2025-9019

tcpreplay tcpprep cidr.c mask_cidr6 heap-based overflow

Vulnerability Description

A vulnerability has been found in tcpreplay 4.5.1. This vulnerability affects the function mask_cidr6 of the file cidr.c of the component tcpprep. The manipulation leads to heap-based buffer overflow. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The researcher is able to reproduce this with the latest official release 4.5.1 and the current master branch. The code maintainer cannot reproduce this for 4.5.2-beta1. In his reply the maintainer explains that "[i]n that case, this is a duplicate that was fixed in 4.5.2."

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • nipc-cxd (VulDB User)

Affected Vendor

Affected Software

tcpreplay
Vulnerable Versions:
4.5.1

Timeline

Official Publish: August 15th, 2025
Last Modified: August 15th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C

Weaknesses (CWE)