Use After Free Affecting appneta/tcpreplay package, versions [,4.5.2-beta3)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-APPNETATCPREPLAY-12301707
- published31 Aug 2025
- disclosed24 Aug 2025
- creditYuqing Zhang, Shuhao Li, Xudong Cao
Introduced: 24 Aug 2025
NewCVE-2025-9386 (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 get_l2len_protocol function in the get.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.