7.5 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
61.7%
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.
www.cisco.com/warp/public/707/ios-tcp-isn-random-pub.shtml