CVE-2014-7250

The TCP stack in 4.3BSD Net/2, as used in FreeBSD 5.4, NetBSD possibly 2.0, and OpenBSD possibly 3.6, does not properly implement the session timer, which allows remote attackers to cause a denial of service (resource consumption) via crafted packets.

Published: 2014-12-12 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-7250 is rated Moderate Risk (51.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.73%). EPSS rose +1.57% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2014-7250

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 2025-03-23 2.16% 3.73% +1.57%
2 2025-03-17 0.46% 2.16% +1.70%
3 2023-03-07 — 0.46% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-7250

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2014-7250

Affected software / configurations for CVE-2014-7250

Vendor Product Version Raw CPE
bsd bsd 4.3 cpe:2.3:o:bsd:bsd:4.3:*:*:*:*:*:*:*
freebsd freebsd 5.4 cpe:2.3:o:freebsd:freebsd:5.4:*:*:*:*:*:*:*
netbsd netbsd 2.0 cpe:2.3:o:netbsd:netbsd:2.0:*:*:*:*:*:*:*
openbsd openbsd 3.6 cpe:2.3:o:openbsd:openbsd:3.6:*:*:*:*:*:*:*

References for CVE-2014-7250

cvelogic Threat Intelligence