appneta tcpreplay tcprewrite edit_packet.c fix_ipv6_checksums use after free
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA tcpreplay (appneta) Fixed in 4.5.2-beta3
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2025-9385
- 2026-10-03 Alias added: GHSA-h762-gwwm-v9vj
References
More Broadcom Tcpreplay vulnerabilities
- TI-2024-15099 tcpreplay v4.4.4 was discovered to contain an infinite loop via the tcprewrite function at get.c. CVSS 3.1HIGH 7.5
- TI-2025-32293 Within tcpreplay's tcprewrite, a double free vulnerability has been identified in the… CVSS 3.1HIGH 7.8
- TI-2023-12413 An issue found in TCPreplay tcprewrite v.4.4.3 allows a remote attacker to cause a denial… CVSS 3.1HIGH 7.5
- TI-2024-02831 appneta tcpreplay get.c get_layer4_v6 heap-based overflow CVSS 3.1HIGH 7.8
- TI-2025-32292 A heap-buffer-overflow vulnerability exists in the tcpliveplay utility of the… CVSS 3.1HIGH 7.5
- TI-2023-12419 An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service… CVSS 3.1HIGH 7.5
Sources
- CVE-2025-9385 · CVE Program
- CVE-2025-9385 · NVD
- FIRST EPSS
- GHSA-h762-gwwm-v9vj · GitHub Advisory Database · CC BY 4.0
- CVE-2025-9385 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences