CVE-2020-3161

Cisco IP Phones Web Server Remote Code Execution and Denial of Service Vulnerability

State
Published
Severity
9.8 Critical
Published
Apr 15, 2020
Updated
Oct 21, 2025
Reserved
Dec 12, 2019

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Description

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.

Scores

CVSSScoreVectorSource
3.09.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hcisco

Weaknesses

Affected Products

ProductVersions
Cisco IP phoneCisco
  • n/aAffected

References

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