CVE-2001-0163 — Cisco AP340 base station produces predictable TCP Initial Sequence Numbers (ISNs), which allows remote attackers to spoof or hijack TCP connections

Back Back to CVE browser

MEDIUM

Cisco AP340 base station produces predictable TCP Initial Sequence Numbers (ISNs), which allows remote attackers to spoof or hijack TCP connections

Published Apr 14, 2005

4.6

MEDIUM

CVSS 2.0

EPSS 2.80%

Description

Cisco AP340 base station produces predictable TCP Initial Sequence Numbers (ISNs), which allows remote attackers to spoof or hijack TCP connections.

Affected products

Remediation

No remediation recorded yet.

Metrics

2.80% 0.02799

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

EPSS probability 0.02799

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 (12 key points)

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

Date	Score	Percentile	Model
Oct 1, 2026	2.80% (0.02799)	85.96th	v5 (v2026.06.15)
Jun 15, 2026	2.80% (0.02799)	84.55th	v5 (v2026.06.15)
Mar 17, 2025	0.67% (0.00671)	69.65th	v4 (v2025.03.14)
Dec 12, 2024	0.34% (0.00342)	72.35th	v3 (v2023.03.01)
Mar 21, 2024	0.34% (0.00342)	70.92th	v3 (v2023.03.01)
Feb 8, 2024	0.31% (0.00311)	69.27th	v3 (v2023.03.01)
Aug 4, 2023	0.31% (0.00311)	66.10th	v3 (v2023.03.01)
Mar 7, 2023	0.21% (0.00213)	57.46th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Sep 17, 2022	1.05% (0.01055)	50.47th	v2 (v2022.01.01)
Apr 1, 2022	1.05% (0.01055)	48.43th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)

Weaknesses (0)

No CWE recorded.

References (1)

http://www.cs.jhu.edu/~seny/pubs/wince802.pdf
x_refsource_MISCExploitVendor Advisory

Link	Providers	Tags
http://www.cs.jhu.edu/~seny/pubs/wince802.pdf		x_refsource_MISCExploitVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Apr 14, 2005

Updated Aug 8, 2024

Reserved Mar 6, 2001

Link CVE-2001-0163

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2001-0163

Red Hat

Severity n/a

Public date n/a

Links CVE-2001-0163