Double Free Vulnerability in tcpreplay's tcprewrite Affects Appneta Software
CVE-2025-51006

7.8HIGH

Key Information:

Vendor

Appneta

Status
tcpreplay
Vendor
CVE Published:
22 September 2025

What is CVE-2025-51006?

In the tcpreplay software suite, a double free vulnerability exists within the tcprewrite component. This flaw resides in the dlt_linuxsll2_cleanup() function, which can lead to memory corruption due to repeated invocations of the cleanup routine on the same memory region. When an attacker crafts a specific pcap file and utilizes it with the tcprewrite binary, they can exploit this vulnerability to potentially disrupt services, causing Denial of Service (DoS) incidents. System administrators are advised to apply the necessary updates to mitigate the risks associated with this vulnerability.

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References

https://github.com/appneta/tcpreplay/issues/926
https://github.com/sy460129/CVE-2025-51006

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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