{"id":"CVE-2014-3271","aliases":["EUVD-2014-3284","GHSA-xf32-pccr-m3j9"],"status":"published","title":"The DHCPv6 implementation in Cisco IOS XR allows remote attackers to cause a denial of service ...","description":"The DHCPv6 implementation in Cisco IOS XR allows remote attackers to cause a denial of service (device crash) via a malformed packet, aka Bug IDs CSCum85558, CSCum20949, CSCul61849, and CSCul71149.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01973,"percentile":0.80573,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2014-05-20T10:00:00Z","modified":"2026-06-17T00:07:52Z","products":[{"vendor":"cisco","product":"ios_xr"}],"references":[{"url":"http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3271","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id/1030259","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-3271"},{"url":"https://github.com/advisories/GHSA-xf32-pccr-m3j9"}],"sources":{"cve":[{"id":"CVE-2014-3271","description":"The DHCPv6 implementation in Cisco IOS XR allows remote attackers to cause a denial of service (device crash) via a malformed packet, aka Bug IDs CSCum85558, CSCum20949, CSCul61849, and CSCul71149.","status":"published","published":"2014-05-20T10:00:00Z","modified":"2024-08-06T10:35:57.171Z","updated_at":"2026-11-02T14:33:44.569327Z"}],"euvd":[{"id":"EUVD-2014-3284","description":"The DHCPv6 implementation in Cisco IOS XR allows remote attackers to cause a denial of service (device crash) via a malformed packet, aka Bug IDs CSCum85558, CSCum20949, CSCul61849, and CSCul71149.","status":"published","published":"2014-05-20T10:00:00Z","modified":"2024-08-06T10:35:57Z","updated_at":"2026-11-03T01:57:11.825115Z"}],"ghsa":[{"id":"GHSA-xf32-pccr-m3j9","title":"The DHCPv6 implementation in Cisco IOS XR allows remote attackers to cause a denial of service ...","description":"The DHCPv6 implementation in Cisco IOS XR allows remote attackers to cause a denial of service (device crash) via a malformed packet, aka Bug IDs CSCum85558, CSCum20949, CSCul61849, and CSCul71149.","status":"published","published":"2022-05-17T03:49:32Z","modified":"2023-01-27T05:08:42Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:43:20.035173Z"}],"nvd":[{"id":"CVE-2014-3271","description":"The DHCPv6 implementation in Cisco IOS XR allows remote attackers to cause a denial of service (device crash) via a malformed packet, aka Bug IDs CSCum85558, CSCum20949, CSCul61849, and CSCul71149.","status":"published","published":"2014-05-20T11:13:38.263Z","modified":"2026-06-17T00:07:52.317Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:02:54.464139Z"}]}}