CVE-2001-0288

HighCVSS 7.5/10Last modified Jun 16, 2026

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.

Metrics

CVSS 2.0 7.5/10AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected software

No affected versions have been published.

Timeline

Published
May 3, 2001
Last modified
Jun 16, 2026
NVD status
Modified

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