6.1
CVSSv2

CVE-2019-1684

Published: 21/02/2019 Updated: 16/10/2020
CVSS v2 Base Score: 6.1 | Impact Score: 6.9 | Exploitability Score: 6.5
CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8
VMScore: 543
Vector: AV:A/AC:L/Au:N/C:N/I:N/A:C

Vulnerability Summary

A vulnerability in the Cisco Discovery Protocol or Link Layer Discovery Protocol (LLDP) implementation for the Cisco IP Phone 7800 and 8800 Series could allow an unauthenticated, adjacent malicious user to cause an affected phone to reload unexpectedly, resulting in a temporary denial of service (DoS) condition. The vulnerability is due to missing length validation of certain Cisco Discovery Protocol or LLDP packet header fields. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol or LLDP packet to the targeted phone. A successful exploit could allow the malicious user to cause the affected phone to reload unexpectedly, resulting in a temporary DoS condition. Versions before 12.6(1)MN80 are affected.

Vulnerability Trend

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cisco ip phone 8800 firmware

cisco ip phone 7800 firmware

cisco ip conference phone 7832 firmware

cisco ip conference phone 8832 firmware

cisco ip phone 7811 firmware

cisco ip phone 7821 firmware

cisco ip phone 7841 firmware

cisco ip phone 7861 firmware

cisco ip phone 8811 firmware

cisco ip phone 8841 firmware

cisco ip phone 8845 firmware

cisco ip phone 8851 firmware

cisco ip phone 8861 firmware

cisco ip phone 8865 firmware

Vendor Advisories

A vulnerability in the Cisco Discovery Protocol or Link Layer Discovery Protocol (LLDP) implementation for the Cisco IP Phone 7800 and 8800 Series could allow an unauthenticated, adjacent attacker to cause an affected phone to reload unexpectedly, resulting in a temporary denial of service (DoS) condition The vulnerability is due to missing length ...