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Vulnerability Score 7.5 7.5
CVE Id CVE-2001-0751
Last Modified 05 Sep 2008 04:24:50
Published 18 Oct 2001 12:00:00
Confidentiality Impact PARTIAL PARTIAL
Integrity Impact PARTIAL PARTIAL
Availability Impact PARTIAL PARTIAL
Access Vector NETWORK
Access Complexity LOW
Authentication NONE



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.

Vulnerable Systems

Operating System

  • Cisco Cbos 2.3.8


CISCO - 20010522 More Multiple Vulnerabilities in CBOS

XF - tcp-seq-predict(139)

Last Updated: 27 May 2016 10:36:23