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.
Conclusion & alert: CVE-2025-51005 is rated Exploit Available (58.1/100): CVSS High severity, with low exploitation likelihood (EPSS 0.16%). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-03-03 | 0.12% | 0.16% | +0.04% |
| 2 | 2026-02-19 | 0.17% | 0.12% | -0.05% |
| 3 | 2026-01-23 | — | 0.17% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2025-51005: 1 source package rows (tcpreplay); 2 state rows across 2 repos (3.22-community, edge-community); fixed 0, open 2. | https://security.alpinelinux.org/vuln/CVE-2025-51005 |
debian
|
unimportant | CVE-2025-51005 unimportant priority: Debian including 1 source packages (tcpreplay), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 5. | https://security-tracker.debian.org/tracker/CVE-2025-51005 |
ubuntu
|
medium | CVE-2025-51005 medium priority: Ubuntu including 1 source packages (tcpreplay), 8 status rows across 8 suites (bionic, focal, jammy, noble, plucky, questing, upstream, xenial): needs-triage 7, ignored 1. | https://ubuntu.com/security/CVE-2025-51005 |
| URL | Tags |
|---|---|
| https://github.com/appneta/tcpreplay/issues/925 | Exploit Issue Tracking Vendor Advisory |
| https://github.com/sy460129/CVE-2025-51005 | Exploit Third Party Advisory |