How severe is CVE-2025-51005?

CVE-2025-51005 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-51005 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-51005?

CVE-2025-51005 affects Broadcom Tcpreplay. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-51005?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-51005 have an EU (EUVD) identifier?

Yes. CVE-2025-51005 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-30924.

When was CVE-2025-51005 published?

CVE-2025-51005 was published on 2025-09-23 and last updated on 2026-06-17.

CVE-2025-51005

CVE-2025-51005 is a high-severity vulnerability in Broadcom Tcpreplay with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-122.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-30924
Weakness: CWE-122
Affected product: Broadcom Tcpreplay
Published: 2025-09-23
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2025-51005?: 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.
How severe is CVE-2025-51005?: CVE-2025-51005 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-51005 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-51005?: CVE-2025-51005 affects Broadcom Tcpreplay. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-51005?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-51005 have an EU (EUVD) identifier?: Yes. CVE-2025-51005 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-30924.
When was CVE-2025-51005 published?: CVE-2025-51005 was published on 2025-09-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:broadcom:tcpreplay:4.5.1:*:*:*:*:*:*:*

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