What is the CVSS score of CVE-2025-51005?

CVE-2025-51005 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.2%.

Which versions of Tcpreplay are affected by CVE-2025-51005?

CVE-2025-51005 presents notable security risk, a heap-based buffer overflow vulnerability rated CVSS 7.5.

Is there a public PoC exploit available for CVE-2025-51005?

Yes, a public proof-of-concept exploit is available for CVE-2025-51005. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2025-51005?

Within 7 days: Identify all affected systems and apply vendor patches promptly. If patching is delayed, consider network segmentation to limit exposure.

Tcpreplay CVE-2025-51005

HIGH

Heap-based Buffer Overflow (CWE-122)

2025-09-23 cve@mitre.org

Heap Overflow Denial Of Service Buffer Overflow Tcpreplay Suse

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SUSE

HIGH

qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:13 vuln.today

PoC Detected

Oct 08, 2025 - 17:54 vuln.today

Public exploit code

CVE Published

Sep 23, 2025 - 19:15 nvd

HIGH 7.5

DescriptionCVE.org

A heap-buffer-overflow vulnerability exists in the tcpliveplay utility of the tcpreplay-4.5.1. When a crafted pcap file is processed, the program incorrectly handles memory in the checksum calculation logic at do_checksum_math_liveplay in tcpliveplay.c, leading to a possible denial of service.

AnalysisAI

A heap-buffer-overflow vulnerability exists in the tcpliveplay utility of the tcpreplay-4.5.1. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-122. A heap-buffer-overflow vulnerability exists in the tcpliveplay utility of the tcpreplay-4.5.1. When a crafted pcap file is processed, the program incorrectly handles memory in the checksum calculation logic at do_checksum_math_liveplay in tcpliveplay.c, leading to a possible denial of service. Affected products include: Broadcom Tcpreplay.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.