Buffer overflow in Broadcom Tcpreplay
CVE-2025-9019
A vulnerability has been found in tcpreplay 4.5.1. This vulnerability affects the function mask_cidr6 of the file cidr.c of the component tcpprep. The manipulation leads to heap-based buffer overflow. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The researcher is able to reproduce this with the latest official release 4.5.1 and the current master branch. The code maintainer cannot reproduce this for 4.5.2-beta1. In his reply the maintainer explains that "[i]n that case, this is a duplicate that was fixed in 4.5.2."
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.010 (61.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Broadcom Tcpreplay — versions 4.5.1
- Tcpreplay — versions 4.5.1
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (Exploit, VDB Entry, Third Party Advisory, third-party-advisory)
- vuldb.com/ (Exploit, VDB Entry, Third Party Advisory, third-party-advisory)
- vuldb.com/ (Exploit, VDB Entry, Third Party Advisory, third-party-advisory)
- vuldb.com/ (Exploit, VDB Entry, Third Party Advisory, third-party-advisory)
- vuldb.com/ (Exploit, VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/appneta/tcpreplay/issues/958 (issue-tracking, Exploit, Patch, Issue Tracking, Vendor Advisory)
- github.com/appneta/tcpreplay/issues/958 (issue-tracking, Exploit, Patch, Issue Tracking, Vendor Advisory)
- drive.google.com/file/d/13SQYVIb_YQoRfaJaaLf6iLtMiCRCHlBc/view (Exploit, exploit)
Frequently asked questions
- What is CVE-2025-9019?
- CVE-2025-9019 is a low-severity vulnerability in Broadcom Tcpreplay, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.1/10. Published 2025-08-15.
- How severe is CVE-2025-9019?
- Low severity. CVSS v3 base score is 3.1 out of 10.