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

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MEDIUM

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 Dec 12, 2014

5.0

MEDIUM

CVSS 2.0

EPSS 4.75%

Description

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.

Affected products

Remediation

No remediation recorded yet.

Metrics

4.75% 0.04749

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.04749

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (11 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	4.75% (0.04749)	91.59th	v5 (v2026.06.15)
Jun 15, 2026	4.75% (0.04749)	90.69th	v5 (v2026.06.15)
Mar 23, 2025	3.73% (0.03730)	85.78th	v4 (v2025.03.14)
Mar 17, 2025	2.16% (0.02157)	83.10th	v4 (v2025.03.14)
Dec 12, 2024	0.46% (0.00457)	76.10th	v3 (v2023.03.01)
Feb 8, 2024	0.46% (0.00457)	74.55th	v3 (v2023.03.01)
Mar 7, 2023	0.46% (0.00457)	71.38th	v3 (v2023.03.01)
Mar 6, 2023	1.14% (0.01136)	59.45th	v2 (v2022.01.01)
Oct 18, 2022	1.14% (0.01136)	58.28th	v2 (v2022.01.01)
Apr 1, 2022	1.14% (0.01136)	56.27th	v2 (v2022.01.01)
Feb 4, 2022	1.14% (0.01136)	34.23th	v2 (v2022.01.01)

Weaknesses (1)

CWE-399

References (3)

http://jvn.jp/en/jp/JVN07930208/index.html
third-party-advisoryx_refsource_JVNVendor Advisory
http://jvndb.jvn.jp/jvndb/JVNDB-2014-000134
third-party-advisoryx_refsource_JVNDBVendor Advisory
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195243
x_refsource_MISC

Link	Providers	Tags
http://jvn.jp/en/jp/JVN07930208/index.html		third-party-advisoryx_refsource_JVNVendor Advisory
http://jvndb.jvn.jp/jvndb/JVNDB-2014-000134		third-party-advisoryx_refsource_JVNDBVendor Advisory
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195243		x_refsource_MISC

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner jpcert

Published Dec 12, 2014

Updated Aug 6, 2024

Reserved Sep 30, 2014

Link CVE-2014-7250

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2014-7250

Red Hat

Severity n/a

Public date n/a

Links CVE-2014-7250