Vulnerabilities
Vulnerable Software
Cisco:  >> Ios  >> 12.1  Security Vulnerabilities
Cisco IOS 12.2 and earlier running Cisco Discovery Protocol (CDP) allows remote attackers to cause a denial of service (memory consumption) via a flood of CDP neighbor announcements.
CVSS Score
5.0
EPSS Score
0.009
Published
2001-10-09
Cisco routers and switches running IOS 12.0 through 12.2.1 allows a remote attacker to cause a denial of service via a flood of UDP packets.
CVSS Score
5.0
EPSS Score
0.098
Published
2001-07-24
HTTP server for Cisco IOS 11.3 to 12.2 allows attackers to bypass authentication and execute arbitrary commands, when local authorization is being used, by specifying a high access level in the URL.
CVSS Score
9.3
EPSS Score
0.935
Published
2001-07-21
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.
CVSS Score
7.5
EPSS Score
0.04
Published
2001-05-03
Cisco IOS 12.0(5)XU through 12.1(2) allows remote attackers to read system administration and topology information via an "snmp-server host" command, which creates a readable "community" community string if one has not been previously created.
CVSS Score
5.0
EPSS Score
0.006
Published
2001-02-28
Cisco Gigabit Switch Routers (GSR) with Fast Ethernet / Gigabit Ethernet cards, from IOS versions 11.2(15)GS1A up to 11.2(19)GS0.2 and some versions of 12.0, do not properly handle line card failures, which allows remote attackers to bypass ACLs or force the interface to stop forwarding packets.
CVSS Score
5.0
EPSS Score
0.004
Published
2000-10-20
Buffer overflow in Cisco TACACS+ tac_plus server allows remote attackers to cause a denial of service via a malformed packet with a long length field.
CVSS Score
5.0
EPSS Score
0.008
Published
2000-05-30


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