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CVSS: 7.5EPSS: 1%CPEs: 4EXPL: 0

20 Sep 2001 — Cisco devices IOS 12.0 and earlier allow a remote attacker to cause a crash, or bad route updates, via malformed BGP updates with unrecognized transitive attribute. • http://ciac.llnl.gov/ciac/bulletins/l-082.shtml •

CVSS: 7.5EPSS: 13%CPEs: 2EXPL: 1

31 Aug 2001 — Cisco IOS 11.x and 12.0 with ATM support allows attackers to cause a denial of service via the undocumented Interim Local Management Interface (ILMI) SNMP community string. • https://www.exploit-db.com/exploits/20652 •

CVSS: 7.5EPSS: 4%CPEs: 1EXPL: 1

03 May 2001 — 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. • https://www.exploit-db.com/exploits/19522 •

CVSS: 6.5EPSS: 0%CPEs: 54EXPL: 1

03 May 2000 — The on-line help system options in Cisco routers allows non-privileged users without "enabled" access to obtain sensitive information via the show command. • http://www.securityfocus.com/bid/1161 •

CVSS: 9.1EPSS: 0%CPEs: 1EXPL: 0

31 Dec 1999 — Web Cache Control Protocol (WCCP) in Cisco Cache Engine for Cisco IOS 11.2 and earlier does not use authentication, which allows remote attackers to redirect HTTP traffic to arbitrary hosts via WCCP packets to UDP port 2048. • http://www.ciac.org/ciac/bulletins/i-054.shtml •

CVSS: 9.1EPSS: 0%CPEs: 1EXPL: 0

31 Dec 1999 — Vulnerability in Cisco IOS 11.1 through 11.3 with distributed fast switching (DFS) enabled allows remote attackers to bypass certain access control lists when the router switches traffic from a DFS-enabled input interface to an output interface with a logical subinterface, as described by Cisco bug CSCdk43862. • http://ciac.llnl.gov/ciac/bulletins/j-016.shtml •

CVSS: 7.5EPSS: 0%CPEs: 16EXPL: 0

12 Aug 1998 — Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases. • https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0159 •

CVSS: 9.8EPSS: 0%CPEs: 7EXPL: 0

01 Oct 1997 — Some classic Cisco IOS devices have a vulnerability in the PPP CHAP authentication to establish unauthorized PPP connections. • http://www.osvdb.org/1099 •