{"id":"CVE-2010-0577","url":"https://www.cyber-defence.io/tools/cve/CVE-2010-0577","generatedAt":"2026-10-27T18:40:22.507Z","title":"Cisco IOS 12.2 through 12.4, when certain PMTUD, SNAT, or window-size configurations are used, allows remote attackers to cause a denial of service (infinite loop, and device reload or hang) via a TCP segment with crafted options, aka Bug ID CSCsz75186.","description":"Cisco IOS 12.2 through 12.4, when certain PMTUD, SNAT, or window-size configurations are used, allows remote attackers to cause a denial of service (infinite loop, and device reload or hang) via a TCP segment with crafted options, aka Bug ID CSCsz75186.","published":"2010-03-25T21:00:01.000Z","lastModified":"2026-06-16T23:16:26.000Z","status":"Modified","sourceIdentifier":"psirt@cisco.com","cvss":{"version":"2.0","score":7.1,"severity":"HIGH","vector":"AV:N/AC:M/Au:N/C:N/I:N/A:C"},"cwe":["CWE-399"],"affected":["cisco/ios"],"epss":{"score":0.0252,"percentile":0.84729,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.52%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://osvdb.org/63178","source":"psirt@cisco.com"},{"url":"http://secunia.com/advisories/39078","source":"psirt@cisco.com"},{"url":"http://www.cisco.com/en/US/products/products_security_advisory09186a0080b20f34.shtml","tags":["Patch","Vendor Advisory"],"source":"psirt@cisco.com"},{"url":"http://www.securityfocus.com/bid/38930","source":"psirt@cisco.com"},{"url":"http://www.securitytracker.com/id?1023743","source":"psirt@cisco.com"},{"url":"http://www.vupen.com/english/advisories/2010/0703","source":"psirt@cisco.com"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/57129","source":"psirt@cisco.com"},{"url":"http://osvdb.org/63178","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/39078","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.cisco.com/en/US/products/products_security_advisory09186a0080b20f34.shtml","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/38930","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id?1023743","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.vupen.com/english/advisories/2010/0703","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/57129","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2010-0577","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}