Vulnerability in Appneta Tcpreplay
CVE-2025-9649
A security vulnerability has been detected in appneta tcpreplay 4.5.1. Impacted is the function calc_sleep_time of the file send_packets.c. Such manipulation leads to divide by zero. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. Upgrading to version 4.5.3-beta3 is recommended to address this issue. It is advisable to upgrade the affected component. The vendor confirms in a GitHub issue reply: "Was able to reproduce in 6fcbf03 but NOT 4.5.3-beta3."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.003 (14.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 14.7% 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: 0.003 · change: +0.000
Affected products
- Appneta Tcpreplay — versions 4.5.1, 4.5.3-beta3
- Broadcom Tcpreplay — versions 4.5.1
Weakness classification (CWE)
Public proof-of-concept exploits
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)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/appneta/tcpreplay/issues/968 (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
- github.com/appneta/tcpreplay/issues/968 (issue-tracking, Issue Tracking)
- drive.google.com/file/d/16QQtZvUrMbF-i_1cGt5hNWmkn-YVyBOM/view (Exploit, exploit)
Frequently asked questions
- What is CVE-2025-9649?
- CVE-2025-9649 is a low-severity vulnerability in Appneta Tcpreplay, classified under Divide By Zero. CVSS score: 3.3/10. Published 2025-08-29.
- How severe is CVE-2025-9649?
- Low severity. CVSS v3 base score is 3.3 out of 10.
- Is CVE-2025-9649 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.