CVE-2025-9385: appneta tcpreplay · Use After Free
Affects appneta tcpreplaySource CVE Database V5
Not known to be exploited · CVSS 4.8 Medium.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 16% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 24 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| appneta tcpreplay | Affected
| Fixed in– |
AI-suggested
European organizations should promptly upgrade all instances of appneta tcpreplay to version 4.5.2-beta3 or later stable releases to remediate the vulnerability. Additionally, organizations should enforce strict access controls and monitoring on systems where tcpreplay is installed to prevent unauthorized local access. Employing host-based intrusion detection systems (HIDS) to detect anomalous usage of tcpreplay or unusual memory access patterns can provide early warning. Regularly auditing installed software versions and applying patches in a timely manner is critical. Network segmentation can limit the exposure of vulnerable systems to untrusted users. For environments where upgrading immediately is not feasible, consider restricting execution permissions of tcpreplay binaries to trusted administrators only. Finally, incorporate this vulnerability into internal risk assessments and incident response plans to ensure readiness in case of exploitation attempts.
Description
A flaw has been found in appneta tcpreplay up to 4.5.1. The affected element is the function fix_ipv6_checksums of the file edit_packet.c of the component tcprewrite. This manipulation causes use after free. The attack is restricted to local execution. The exploit has been published and may be used. Upgrading to version 4.5.2-beta3 is sufficient to fix this issue. It is advisable to upgrade the affected component.
References
- vuldb.com (opens in a new tab)
- vuldb.com (opens in a new tab)
- vuldb.com (opens in a new tab)
- github.com/appneta/tcpreplay/issues/972 (opens in a new tab)
- github.com/appneta/tcpreplay/issues/972 (opens in a new tab)
- drive.google.com/file/d/1BQZF558bRHv07wtlCoZgtqTlEpHgfytp/view?usp=sharing (opens in a new tab)