Tracker / CVE-2021-1379
CVE-2021-1379
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. These 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.
Affected products and versions
| cisco | ip_conference_phone_7832_firmware |
|---|---|
| cisco | ip_conference_phone_7832_firmware · … → 12.8\(1\) |
| cisco | ip_conference_phone_7832_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | ip_conference_phone_8832_firmware |
| cisco | ip_conference_phone_8832_firmware · … → 12.8\(1\) |
| cisco | ip_conference_phone_8832_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | ip_phone_6821_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | ip_phone_6841_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | ip_phone_6851_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | ip_phone_6861_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | ip_phone_6871_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | ip_phone_7811_firmware |
| cisco | ip_phone_7811_firmware · … → 12.8\(1\) |
| cisco | ip_phone_7811_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | ip_phone_7821_firmware |
| cisco | ip_phone_7821_firmware · … → 12.8\(1\) |
| cisco | ip_phone_7821_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | ip_phone_7841_firmware |
| cisco | ip_phone_7841_firmware · … → 12.8\(1\) |
| cisco | ip_phone_7841_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | ip_phone_7861_firmware |
| cisco | ip_phone_7861_firmware · … → 12.8\(1\) |
| cisco | ip_phone_7861_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | ip_phone_8811_firmware |
| cisco | ip_phone_8811_firmware · … → 12.8\(1\) |
| cisco | ip_phone_8811_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | ip_phone_8841_firmware |
| cisco | ip_phone_8841_firmware · … → 12.8\(1\) |
| cisco | ip_phone_8841_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | ip_phone_8845_firmware |
| cisco | ip_phone_8845_firmware · … → 12.8\(1\) |
| cisco | ip_phone_8845_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | ip_phone_8851_firmware |
| cisco | ip_phone_8851_firmware · … → 12.8\(1\) |
| cisco | ip_phone_8851_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | ip_phone_8861_firmware |
| cisco | ip_phone_8861_firmware · … → 12.8\(1\) |
| cisco | ip_phone_8861_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | ip_phone_8865_firmware |
| cisco | ip_phone_8865_firmware · … → 12.8\(1\) |
| cisco | ip_phone_8865_with_multiplatform_firmware · … → 11.3\(2\) |
| cisco | spa525g_firmware |
| cisco | unified_ip_conference_phone_8831_firmware |
| cisco | unified_ip_conference_phone_8831_firmware · … → 10.3\(1\) |
| cisco | unified_ip_conference_phone_8831_for_third-party_call_control_firmware |
| cisco | wireless_ip_phone_8821-ex_firmware · … → 11.0\(6.6\) |
| cisco | wireless_ip_phone_8821_firmware · … → 11.0\(6.6\) |