VULNERABILITY INTELLIGENCE

CVE-2001-0751

CVSS score7.5 HIGH
EPSS probability2.61%
CISA KEVNot currently listed
Published2001-10-18
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:P/I:P/A:P

Description

Cisco switches and routers running CBOS 2.3.8 and earlier use predictable TCP Initial Sequence Numbers (ISN), which allows remote attackers to spoof or hijack TCP connections.

Primary references