{"id":"CVE-2009-2872","aliases":["EUVD-2009-2862","GHSA-mh9m-75gc-gjxq"],"status":"published","title":"Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are...","description":"Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a denial of service (device reload) via a malformed packet that is not properly handled during switching from one tunnel to a second tunnel, aka Bug IDs CSCsh97579 and CSCsq31776.","severity":{"version":"2.0","score":6.8,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02309,"percentile":0.83492,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2009-09-28T18:20:00Z","modified":"2026-06-16T23:10:24Z","products":[{"vendor":"cisco","product":"ios"}],"references":[{"url":"http://tools.cisco.com/security/center/viewAlert.x?alertId=18893","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8115.shtml","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id?1022930","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.vupen.com/english/advisories/2009/2759","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"http://www.cisco.com/en/US/products/products_applied_mitigation_bulletin09186a0080af8113.html","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://osvdb.org/58333","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_sep09.html","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-2872"},{"url":"https://github.com/advisories/GHSA-mh9m-75gc-gjxq"}],"sources":{"cve":[{"id":"CVE-2009-2872","description":"Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a denial of service (device reload) via a malformed packet that is not properly handled during switching from one tunnel to a second tunnel, aka Bug IDs CSCsh97579 and CSCsq31776.","status":"published","published":"2009-09-28T18:20:00Z","modified":"2024-08-07T06:07:37.201Z","updated_at":"2026-11-02T14:33:23.395558Z"}],"euvd":[{"id":"EUVD-2009-2862","description":"Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a denial of service (device reload) via a malformed packet that is not properly handled during switching from one tunnel to a second tunnel, aka Bug IDs CSCsh97579 and CSCsq31776.","status":"published","published":"2009-09-28T18:20:00Z","modified":"2024-08-07T06:07:37Z","updated_at":"2026-11-03T01:39:15.952935Z"}],"ghsa":[{"id":"GHSA-mh9m-75gc-gjxq","title":"Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are...","description":"Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a denial of service (device reload) via a malformed packet that is not properly handled during switching from one tunnel to a second tunnel, aka Bug IDs CSCsh97579 and CSCsq31776.","status":"published","published":"2022-05-02T03:39:28Z","modified":"2023-01-31T05:07:39Z","updated_at":"2026-11-02T14:49:15.080722Z"}],"nvd":[{"id":"CVE-2009-2872","description":"Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a denial of service (device reload) via a malformed packet that is not properly handled during switching from one tunnel to a second tunnel, aka Bug IDs CSCsh97579 and CSCsq31776.","status":"published","published":"2009-09-28T19:30:01.53Z","modified":"2026-06-16T23:10:24.047Z","cvss":[{"version":"2.0","score":6.8,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:01:37.004244Z"}]}}