What is CVE-2025-9385?

CVE-2025-9385 is a medium-severity vulnerability in Appneta Tcpreplay, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2025-08-24.

How severe is CVE-2025-9385?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2025-9385 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Appneta Tcpreplay

CVE-2025-9385

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.

Vulnerability class: Buffer Overflow

Published 2025-08-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.002 (13.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 13.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Appneta Tcpreplay — versions 4.5.0, 4.5.1, 4.5.2-beta3
Broadcom Tcpreplay

Weakness classification (CWE)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
github.com/appneta/tcpreplay/issues/972 (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
github.com/appneta/tcpreplay/issues/972 (issue-tracking, Issue Tracking)
drive.google.com/file/d/1BQZF558bRHv07wtlCoZgtqTlEpHgfytp/view (Exploit, exploit)

Frequently asked questions

What is CVE-2025-9385?: CVE-2025-9385 is a medium-severity vulnerability in Appneta Tcpreplay, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2025-08-24.
How severe is CVE-2025-9385?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2025-9385 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.