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HIGH

Cisco switches and routers running IOS 12.1 and earlier produce predictable TCP Initial Sequence Numbers (ISNs), which allows remote attackers to spoof or hijack TCP connections

Published May 7, 2001

Description

Cisco switches and routers running IOS 12.1 and earlier produce predictable TCP Initial Sequence Numbers (ISNs), which allows remote attackers to spoof or hijack TCP connections.

Affected products

Remediation

No remediation recorded yet.

Metrics

Weaknesses (0)

No CWE recorded.

References (1)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published May 7, 2001
Updated Aug 8, 2024
Reserved Apr 4, 2001
Link CVE-2001-0288
CISA Vulnrichment
Updated n/a
NVD
Status Modified
Modified Jun 16, 2026
Link CVE-2001-0288
Red Hat
Severity n/a
Public date n/a
Links CVE-2001-0288