Heap-based buffer overflow in the nbns_spoof function in plug-ins/nbns_spoof/nbns_spoof.c in Ettercap 0.8.1 allows remote attackers to cause a denial of service or possibly execute arbitrary code via a large netbios packet.
Conclusion & alert: CVE-2014-9377 is rated Moderate Risk (58.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.79%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 2025-04-10 | 3.88% | 2.79% | -1.10% |
| 2 | 2025-03-30 | 3.84% | 3.88% | +0.04% |
| 3 | 2025-03-29 | — | 3.84% | — |
Full EPSS history (6 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2014-9377 not yet assigned priority: Debian including 1 source packages (ettercap), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2014-9377 |
gentoo
|
normal | CVE-2014-9377: 1 GLSA(s) (201505-01), 1 atom(s) (net-analyzer/ettercap); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2014-9377 |
ubuntu
|
medium | CVE-2014-9377 medium priority: Ubuntu including 1 source packages (ettercap), 14 status rows across 14 suites (artful, bionic, cosmic, disco, lucid, precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 9, ignored 3, DNE 1, released 1. | https://ubuntu.com/security/CVE-2014-9377 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| ettercap-project | ettercap | 0.8.1 | cpe:2.3:a:ettercap-project:ettercap:0.8.1:*:*:*:*:*:*:* |