{"schemaVersion":3,"id":"CVE-2021-1379","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Multiple vulnerabilities in the Cisco Discovery Protocol and Link Layer Discovery Protocol (LLDP) implementations for Cisco IP Phone Series 68xx/78xx/88xx could allow an unauthenticated, adjacent attacker to execute code remotely or cause a reload of an affected IP phone.\nThese vulnerabilities are due to missing checks when the IP phone processes a Cisco Discovery Protocol or LLDP packet. An attacker could exploit these vulnerabilities by sending a malicious Cisco Discovery Protocol or LLDP packet to the targeted IP phone. A successful exploit could allow the attacker to execute code on the affected IP phone or cause it to reload unexpectedly, resulting in a denial of service (DoS) condition.Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.","dates":{"published":"2024-11-18T15:42:00.388Z","modified":"2024-11-18T16:23:13.534Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/RL:X/RC:X/E:X","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/RL:X/RC:X/E:X","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00328,"percentile":0.24515,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00328},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00328,"percentile":0.24515}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00328,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00328,"percentile":null},{"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