// For flags

CVE-2020-3111

Cisco IP Phone Remote Code Execution and Denial of Service Vulnerability

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

A vulnerability in the Cisco Discovery Protocol implementation for the Cisco IP Phone could allow an unauthenticated, adjacent attacker to remotely execute code with root privileges or cause a reload of an affected IP phone. The vulnerability is due to missing checks when processing Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a crafted Cisco Discovery Protocol packet to the targeted IP phone. 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 denial of service (DoS) condition. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).

Una vulnerabilidad en la implementación de Cisco Discovery Protocol para Cisco IP Phone, podría permitir a un atacante adyacente no autenticado ejecutar código remotamente con privilegios root o causar una recarga de un teléfono IP afectado. La vulnerabilidad es debido a una falta de comprobaciones cuando se procesan los mensajes de Cisco Discovery Protocol. Un atacante podría explotar esta vulnerabilidad mediante el envío de un paquete de Cisco Discovery Protocol diseñado hacia el teléfono IP apuntado. Una explotación con éxito podría permitir al atacante ejecutar código remotamente con privilegios root o provocar una recarga de un teléfono IP afectado, resultando en una condición de denegación de servicio (DoS). Cisco Discovery Protocol es un protocolo de Capa 2. Para explotar esta vulnerabilidad, un atacante debe encontrarse en el mismo dominio de difusión que el dispositivo afectado (Capa 2 adyacente).

*Credits: N/A
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Adjacent
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2019-12-12 CVE Reserved
  • 2020-02-05 CVE Published
  • 2024-06-18 EPSS Updated
  • 2024-11-15 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
Ip Conference Phone 7832 Firmware
Search vendor "Cisco" for product "Ip Conference Phone 7832 Firmware"
< 12.7\(1\)
Search vendor "Cisco" for product "Ip Conference Phone 7832 Firmware" and version " < 12.7\(1\)"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Conference Phone 7832
Search vendor "Cisco" for product "Ip Conference Phone 7832"
--
Safe
Cisco
Search vendor "Cisco"
Ip Conference Phone 7832 With Multiplatform Firmware
Search vendor "Cisco" for product "Ip Conference Phone 7832 With Multiplatform Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Conference Phone 7832 With Multiplatform Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Conference Phone 7832
Search vendor "Cisco" for product "Ip Conference Phone 7832"
--
Safe
Cisco
Search vendor "Cisco"
Ip Conference Phone 8832 Firmware
Search vendor "Cisco" for product "Ip Conference Phone 8832 Firmware"
< 12.7\(1\)
Search vendor "Cisco" for product "Ip Conference Phone 8832 Firmware" and version " < 12.7\(1\)"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Conference Phone 8832
Search vendor "Cisco" for product "Ip Conference Phone 8832"
--
Safe
Cisco
Search vendor "Cisco"
Ip Conference Phone 8832 With Multiplatform Firmware
Search vendor "Cisco" for product "Ip Conference Phone 8832 With Multiplatform Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Conference Phone 8832 With Multiplatform Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Conference Phone 8832
Search vendor "Cisco" for product "Ip Conference Phone 8832"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 6821 Firmware
Search vendor "Cisco" for product "Ip Phone 6821 Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Phone 6821 Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 6821
Search vendor "Cisco" for product "Ip Phone 6821"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 6841 Firmware
Search vendor "Cisco" for product "Ip Phone 6841 Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Phone 6841 Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 6841
Search vendor "Cisco" for product "Ip Phone 6841"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 6851 Firmware
Search vendor "Cisco" for product "Ip Phone 6851 Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Phone 6851 Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 6851
Search vendor "Cisco" for product "Ip Phone 6851"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 6861 Firmware
Search vendor "Cisco" for product "Ip Phone 6861 Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Phone 6861 Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 6861
Search vendor "Cisco" for product "Ip Phone 6861"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 6871 Firmware
Search vendor "Cisco" for product "Ip Phone 6871 Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Phone 6871 Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 6871
Search vendor "Cisco" for product "Ip Phone 6871"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 7811 Firmware
Search vendor "Cisco" for product "Ip Phone 7811 Firmware"
< 12.7\(1\)
Search vendor "Cisco" for product "Ip Phone 7811 Firmware" and version " < 12.7\(1\)"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 7811
Search vendor "Cisco" for product "Ip Phone 7811"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 7811 With Multiplatform Firmware
Search vendor "Cisco" for product "Ip Phone 7811 With Multiplatform Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Phone 7811 With Multiplatform Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 7811
Search vendor "Cisco" for product "Ip Phone 7811"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 7821 Firmware
Search vendor "Cisco" for product "Ip Phone 7821 Firmware"
< 12.7\(1\)
Search vendor "Cisco" for product "Ip Phone 7821 Firmware" and version " < 12.7\(1\)"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 7821
Search vendor "Cisco" for product "Ip Phone 7821"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 7821 With Multiplatform Firmware
Search vendor "Cisco" for product "Ip Phone 7821 With Multiplatform Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Phone 7821 With Multiplatform Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 7821
Search vendor "Cisco" for product "Ip Phone 7821"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 7841 Firmware
Search vendor "Cisco" for product "Ip Phone 7841 Firmware"
< 12.7\(1\)
Search vendor "Cisco" for product "Ip Phone 7841 Firmware" and version " < 12.7\(1\)"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 7841
Search vendor "Cisco" for product "Ip Phone 7841"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 7841 With Multiplatform Firmware
Search vendor "Cisco" for product "Ip Phone 7841 With Multiplatform Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Phone 7841 With Multiplatform Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 7841
Search vendor "Cisco" for product "Ip Phone 7841"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 7861 Firmware
Search vendor "Cisco" for product "Ip Phone 7861 Firmware"
< 12.7\(1\)
Search vendor "Cisco" for product "Ip Phone 7861 Firmware" and version " < 12.7\(1\)"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 7861
Search vendor "Cisco" for product "Ip Phone 7861"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 7861 With Multiplatform Firmware
Search vendor "Cisco" for product "Ip Phone 7861 With Multiplatform Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Phone 7861 With Multiplatform Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 7861
Search vendor "Cisco" for product "Ip Phone 7861"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 8811 Firmware
Search vendor "Cisco" for product "Ip Phone 8811 Firmware"
< 12.7\(1\)
Search vendor "Cisco" for product "Ip Phone 8811 Firmware" and version " < 12.7\(1\)"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 8811
Search vendor "Cisco" for product "Ip Phone 8811"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 8811 With Multiplatform Firmware
Search vendor "Cisco" for product "Ip Phone 8811 With Multiplatform Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Phone 8811 With Multiplatform Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 8811
Search vendor "Cisco" for product "Ip Phone 8811"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 8841 Firmware
Search vendor "Cisco" for product "Ip Phone 8841 Firmware"
< 12.7\(1\)
Search vendor "Cisco" for product "Ip Phone 8841 Firmware" and version " < 12.7\(1\)"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 8841
Search vendor "Cisco" for product "Ip Phone 8841"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 8841 With Multiplatform Firmware
Search vendor "Cisco" for product "Ip Phone 8841 With Multiplatform Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Phone 8841 With Multiplatform Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 8841
Search vendor "Cisco" for product "Ip Phone 8841"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 8851 Firmware
Search vendor "Cisco" for product "Ip Phone 8851 Firmware"
< 12.7\(1\)
Search vendor "Cisco" for product "Ip Phone 8851 Firmware" and version " < 12.7\(1\)"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 8851
Search vendor "Cisco" for product "Ip Phone 8851"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 8851 With Multiplatform Firmware
Search vendor "Cisco" for product "Ip Phone 8851 With Multiplatform Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Phone 8851 With Multiplatform Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 8851
Search vendor "Cisco" for product "Ip Phone 8851"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 8861 Firmware
Search vendor "Cisco" for product "Ip Phone 8861 Firmware"
< 12.7\(1\)
Search vendor "Cisco" for product "Ip Phone 8861 Firmware" and version " < 12.7\(1\)"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 8861
Search vendor "Cisco" for product "Ip Phone 8861"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 8861 With Multiplatform Firmware
Search vendor "Cisco" for product "Ip Phone 8861 With Multiplatform Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Phone 8861 With Multiplatform Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 8861
Search vendor "Cisco" for product "Ip Phone 8861"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 8845 Firmware
Search vendor "Cisco" for product "Ip Phone 8845 Firmware"
< 12.7\(1\)
Search vendor "Cisco" for product "Ip Phone 8845 Firmware" and version " < 12.7\(1\)"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 8845
Search vendor "Cisco" for product "Ip Phone 8845"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 8845 With Multiplatform Firmware
Search vendor "Cisco" for product "Ip Phone 8845 With Multiplatform Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Phone 8845 With Multiplatform Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 8845
Search vendor "Cisco" for product "Ip Phone 8845"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 8865 Firmware
Search vendor "Cisco" for product "Ip Phone 8865 Firmware"
< 12.7\(1\)
Search vendor "Cisco" for product "Ip Phone 8865 Firmware" and version " < 12.7\(1\)"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 8865
Search vendor "Cisco" for product "Ip Phone 8865"
--
Safe
Cisco
Search vendor "Cisco"
Ip Phone 8865 With Multiplatform Firmware
Search vendor "Cisco" for product "Ip Phone 8865 With Multiplatform Firmware"
< 11.3\(1\)sr1
Search vendor "Cisco" for product "Ip Phone 8865 With Multiplatform Firmware" and version " < 11.3\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
Ip Phone 8865
Search vendor "Cisco" for product "Ip Phone 8865"
--
Safe
Cisco
Search vendor "Cisco"
Unified Ip Conference Phone 8831 Firmware
Search vendor "Cisco" for product "Unified Ip Conference Phone 8831 Firmware"
< 10.3\(1\)sr6
Search vendor "Cisco" for product "Unified Ip Conference Phone 8831 Firmware" and version " < 10.3\(1\)sr6"
-
Affected
in Cisco
Search vendor "Cisco"
Unified Ip Conference Phone 8831
Search vendor "Cisco" for product "Unified Ip Conference Phone 8831"
--
Safe
Cisco
Search vendor "Cisco"
Unified Ip Conference Phone 8831 For Third-party Call Control Firmware
Search vendor "Cisco" for product "Unified Ip Conference Phone 8831 For Third-party Call Control Firmware"
--
Affected
in Cisco
Search vendor "Cisco"
Unified Ip Conference Phone 8831 For Third-party Call Control
Search vendor "Cisco" for product "Unified Ip Conference Phone 8831 For Third-party Call Control"
--
Safe
Cisco
Search vendor "Cisco"
Wireless Ip Phone 8821 Firmware
Search vendor "Cisco" for product "Wireless Ip Phone 8821 Firmware"
< 11.0\(5\)sr2
Search vendor "Cisco" for product "Wireless Ip Phone 8821 Firmware" and version " < 11.0\(5\)sr2"
-
Affected
in Cisco
Search vendor "Cisco"
Wireless Ip Phone 8821
Search vendor "Cisco" for product "Wireless Ip Phone 8821"
--
Safe
Cisco
Search vendor "Cisco"
Wireless Ip Phone 8821-ex Firmware
Search vendor "Cisco" for product "Wireless Ip Phone 8821-ex Firmware"
< 11.0\(5\)sr2
Search vendor "Cisco" for product "Wireless Ip Phone 8821-ex Firmware" and version " < 11.0\(5\)sr2"
-
Affected
in Cisco
Search vendor "Cisco"
Wireless Ip Phone 8821-ex
Search vendor "Cisco" for product "Wireless Ip Phone 8821-ex"
--
Safe