Use After Free Affecting appneta/tcpreplay package, versions [,4.5.2-beta3)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.01% (3rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Use After Free vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-UNMANAGED-APPNETATCPREPLAY-12301706
  • published31 Aug 2025
  • disclosed24 Aug 2025
  • creditShuhao Li, Xudong Cao, Yuqing Zhang

Introduced: 24 Aug 2025

NewCVE-2025-9385  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade appneta/tcpreplay to version 4.5.2-beta3 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free via the fix_ipv6_checksums function in the edit_packet.c file of the tcprewrite component. An attacker can cause a SIGABRT by providing a specially crafted traffic file, triggering access to memory after it has been freed.

References

CVSS Base Scores

version 4.0
version 3.1