// For flags

CVE-2022-20691

 

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Adaptive Telephone Adapter firmware could allow an unauthenticated, adjacent attacker to cause a DoS condition of an affected device.
This vulnerability is due to missing length validation of certain Cisco Discovery Protocol packet header fields. An attacker could exploit this vulnerability by sending crafted Cisco Discovery Protocol packets to an affected device. A successful exploit could allow the attacker to cause the device to exhaust available memory and cause the service to restart.
Cisco has released firmware updates that address this vulnerability.

Una vulnerabilidad en la funcionalidad Cisco Discovery Protocol del firmware del adaptador telefónico adaptable Cisco ATA serie 190 podría permitir que un atacante adyacente no autenticado cause una condición DoS en un dispositivo afectado. Esta vulnerabilidad se debe a la falta de validación de longitud de ciertos campos de encabezado de paquetes de Cisco Discovery Protocol. Un atacante podría aprovechar esta vulnerabilidad enviando paquetes manipulados del Cisco Discovery Protocol a un dispositivo afectado. Un exploit exitoso podría permitir al atacante hacer que el dispositivo agote la memoria disponible y provocar que el servicio se reinicie. Cisco ha lanzado actualizaciones de firmware que abordan esta vulnerabilidad.

*Credits: N/A
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-11-02 CVE Reserved
  • 2022-12-07 CVE Published
  • 2024-06-29 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
  • CWE-1284: Improper Validation of Specified Quantity in Input
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"
Ata 190 Firmware
Search vendor "Cisco" for product "Ata 190 Firmware"
-on-premises
Affected
in Cisco
Search vendor "Cisco"
Ata 190
Search vendor "Cisco" for product "Ata 190"
-on-premises
Safe
Cisco
Search vendor "Cisco"
Ata 191 Firmware
Search vendor "Cisco" for product "Ata 191 Firmware"
< 11.2.2
Search vendor "Cisco" for product "Ata 191 Firmware" and version " < 11.2.2"
multiplatform
Affected
in Cisco
Search vendor "Cisco"
Ata 191
Search vendor "Cisco" for product "Ata 191"
-multiplatform
Safe
Cisco
Search vendor "Cisco"
Ata 191 Firmware
Search vendor "Cisco" for product "Ata 191 Firmware"
< 12.0.1
Search vendor "Cisco" for product "Ata 191 Firmware" and version " < 12.0.1"
on-premises
Affected
in Cisco
Search vendor "Cisco"
Ata 191
Search vendor "Cisco" for product "Ata 191"
-on-premises
Safe
Cisco
Search vendor "Cisco"
Ata 191 Firmware
Search vendor "Cisco" for product "Ata 191 Firmware"
12.0.1
Search vendor "Cisco" for product "Ata 191 Firmware" and version "12.0.1"
on-premises
Affected
in Cisco
Search vendor "Cisco"
Ata 191
Search vendor "Cisco" for product "Ata 191"
-on-premises
Safe
Cisco
Search vendor "Cisco"
Ata 191 Firmware
Search vendor "Cisco" for product "Ata 191 Firmware"
12.0.1
Search vendor "Cisco" for product "Ata 191 Firmware" and version "12.0.1"
sr1, on-premises
Affected
in Cisco
Search vendor "Cisco"
Ata 191
Search vendor "Cisco" for product "Ata 191"
-on-premises
Safe
Cisco
Search vendor "Cisco"
Ata 191 Firmware
Search vendor "Cisco" for product "Ata 191 Firmware"
12.0.1
Search vendor "Cisco" for product "Ata 191 Firmware" and version "12.0.1"
sr2, on-premises
Affected
in Cisco
Search vendor "Cisco"
Ata 191
Search vendor "Cisco" for product "Ata 191"
-on-premises
Safe
Cisco
Search vendor "Cisco"
Ata 191 Firmware
Search vendor "Cisco" for product "Ata 191 Firmware"
12.0.1
Search vendor "Cisco" for product "Ata 191 Firmware" and version "12.0.1"
sr3, on-premises
Affected
in Cisco
Search vendor "Cisco"
Ata 191
Search vendor "Cisco" for product "Ata 191"
-on-premises
Safe
Cisco
Search vendor "Cisco"
Ata 191 Firmware
Search vendor "Cisco" for product "Ata 191 Firmware"
12.0.1
Search vendor "Cisco" for product "Ata 191 Firmware" and version "12.0.1"
sr4, on-premises
Affected
in Cisco
Search vendor "Cisco"
Ata 191
Search vendor "Cisco" for product "Ata 191"
-on-premises
Safe
Cisco
Search vendor "Cisco"
Ata 192 Firmware
Search vendor "Cisco" for product "Ata 192 Firmware"
< 11.2.2
Search vendor "Cisco" for product "Ata 192 Firmware" and version " < 11.2.2"
multiplatform
Affected
in Cisco
Search vendor "Cisco"
Ata 192
Search vendor "Cisco" for product "Ata 192"
-multiplatform
Safe