Live › vulnerability › CVE-2020-3161
Go to dashboardCisco IP Phones have an input validation flaw in their web server that accepts crafted HTTP requests. An unauthenticated attacker can run code remotely with root privileges or crash the phone's web service.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply updates per vendor instructions.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Cisco Cisco IP Phones | vendor | – | – |
Identify affected Cisco IP Phone models and firmware versions from the Cisco advisory; the sources do not give a check command.
Apply the Cisco firmware update for the affected phone models per vendor instructions; the sources do not name the fixed version.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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.
This page as .md · .json · in your agent: get_signal("CVE-2020-3161")
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