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CVSS: 5.0EPSS: 1%CPEs: 1EXPL: 0

Cisco 2611 router running IOS 12.1(6.5), possibly an interim release, allows remote attackers to cause a denial of service via port scans such as (1) scanning all ports on a single host and (2) scanning a network of hosts for a single open port through the router. NOTE: the vendor could not reproduce this issue, saying that the original reporter was using an interim release of the software. • http://archives.neohapsis.com/archives/bugtraq/2002-06/0027.html http://archives.neohapsis.com/archives/bugtraq/2002-06/0050.html http://www.iss.net/security_center/static/9281.php http://www.securityfocus.com/bid/4947 •

CVSS: 5.0EPSS: 0%CPEs: 1EXPL: 0

The design of the Hot Standby Routing Protocol (HSRP), as implemented on Cisco IOS 12.1, when using IRPAS, allows remote attackers to cause a denial of service (CPU consumption) via a router with the same IP address as the interface on which HSRP is running, which causes a loop. • http://archives.neohapsis.com/archives/bugtraq/2002-06/0027.html http://archives.neohapsis.com/archives/bugtraq/2002-06/0050.html http://www.iss.net/security_center/static/9283.php http://www.securityfocus.com/bid/4949 •

CVSS: 10.0EPSS: 4%CPEs: 16EXPL: 0

Multiple SSH2 servers and clients do not properly handle lists with empty elements or strings, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code, as demonstrated by the SSHredder SSH protocol test suite. • http://archives.neohapsis.com/archives/vulnwatch/2002-q4/0110.html http://securitytracker.com/id?1005812 http://securitytracker.com/id?1005813 http://www.cert.org/advisories/CA-2002-36.html https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5721 • CWE-20: Improper Input Validation •

CVSS: 10.0EPSS: 4%CPEs: 16EXPL: 0

Multiple SSH2 servers and clients do not properly handle strings with null characters in them when the string length is specified by a length field, which could allow remote attackers to cause a denial of service or possibly execute arbitrary code due to interactions with the use of null-terminated strings as implemented using languages such as C, as demonstrated by the SSHredder SSH protocol test suite. • http://archives.neohapsis.com/archives/vulnwatch/2002-q4/0110.html http://securitytracker.com/id?1005812 http://securitytracker.com/id?1005813 http://www.cert.org/advisories/CA-2002-36.html https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5797 • CWE-20: Improper Input Validation •

CVSS: 10.0EPSS: 19%CPEs: 16EXPL: 0

Multiple SSH2 servers and clients do not properly handle packets or data elements with incorrect length specifiers, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code, as demonstrated by the SSHredder SSH protocol test suite. • http://archives.neohapsis.com/archives/vulnwatch/2002-q4/0110.html http://securitytracker.com/id?1005812 http://securitytracker.com/id?1005813 http://www.cert.org/advisories/CA-2002-36.html http://www.kb.cert.org/vuls/id/389665 http://www.securityfocus.com/bid/6405 https://exchange.xforce.ibmcloud.com/vulnerabilities/10868 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5849 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •