CVE-2020-3161
CRITICAL KEVCisco IP Phones - RCE/DoS
Title source: llmDescription
A vulnerability in the web server for Cisco IP Phones could allow an unauthenticated, remote attacker to execute code with root privileges or cause a reload of an affected IP phone, resulting in a denial of service (DoS) condition. The vulnerability is due to a lack of proper input validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web server of a targeted device. A successful exploit could allow the attacker to remotely execute code with root privileges or cause a reload of an affected IP phone, resulting in a DoS condition.
Exploits (2)
References (3)
Scores
CVSS v3
9.8
EPSS
0.8709
EPSS Percentile
99.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CISA KEV
2021-11-03
VulnCheck KEV
2021-11-03
InTheWild.io
2021-07-23
ENISA EUVD
EUVD-2020-24432
CWE
CWE-20
Status
published
Products (31)
cisco/8831_firmware
10.3\(1\)es14
cisco/8831_firmware
11.0\(1\)
cisco/8831_firmware
11.0\(5\)sr1
cisco/ip_phone_7811_firmware
11.0\(1\)
cisco/ip_phone_7821_firmware
11.0\(1\)
cisco/ip_phone_7841_firmware
11.0\(1\)
cisco/ip_phone_7861_firmware
11.0\(1\)
cisco/ip_phone_8811_firmware
10.3\(1\)es14
cisco/ip_phone_8811_firmware
11.0\(1\)
cisco/ip_phone_8811_firmware
11.0\(5\)sr1
... and 21 more
Published
Apr 15, 2020
KEV Added
Nov 03, 2021
Tracked Since
Feb 18, 2026