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…
Does this matter?
Lower severity and a low EPSS score (0.33%). Track it; it rarely justifies an emergency change on its own.
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. 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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.33% probability · 26th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- cisco/ip conference phone 7832 firmware · cisco/ip conference phone 7832 with multiplatform firmware · cisco/ip conference phone 8832 firmware · cisco/ip conference phone 8832 with multiplatform firmware · cisco/ip phone 6821 with multiplatform firmware · cisco/ip phone 6841 with multiplatform firmware · cisco/ip phone 6851 with multiplatform firmware · cisco/ip phone 6861 with multiplatform firmware · cisco/ip phone 6871 with multiplatform firmware · cisco/ip phone 7811 firmware · cisco/ip phone 7811 with multiplatform firmware · cisco/ip phone 7821 firmware · cisco/ip phone 7821 with multiplatform firmware · cisco/ip phone 7841 firmware · cisco/ip phone 7841 with multiplatform firmware · cisco/ip phone 7861 firmware · cisco/ip phone 7861 with multiplatform firmware · cisco/ip phone 8811 firmware · cisco/ip phone 8811 with multiplatform firmware · cisco/ip phone 8841 firmware · +14 more
- Source
- psirt@cisco.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.