CVE-2025-51006

HighCVSS 7.8/10Last modified Nov 5, 2026

Description

Within tcpreplay's tcprewrite, a double free vulnerability has been identified in the dlt_linuxsll2_cleanup() function in plugins/dlt_linuxsll2/linuxsll2.c. This vulnerability is triggered when tcpedit_dlt_cleanup() indirectly invokes the cleanup routine multiple times on the same memory region. By supplying a specifically crafted pcap file to the tcprewrite binary, a local attacker can exploit this flaw to cause a Denial of Service (DoS) via memory corruption.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-415

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/appneta/tcpreplay/issues/926Exploit, Issue Tracking, Patch
https://github.com/sy460129/CVE-2025-51006Exploit, Third Party Advisory

Timeline

Published: Sep 22, 2025
Last modified: Nov 5, 2026
NVD status: Analyzed

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