CVE-2025-51006 Affecting tcpreplay package, versions <4.5.2-1
Threat Intelligence
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-DEBIANUNSTABLE-TCPREPLAY-13045614
- published25 Sept 2025
- disclosed22 Sept 2025
Introduced: 22 Sep 2025
NewCVE-2025-51006 (opens in a new tab)How to fix?
Upgrade Debian:unstable tcpreplay to version 4.5.2-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream tcpreplay package and not the tcpreplay package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.