// For flags

CVE-2020-3262

Cisco Wireless LAN Controller CAPWAP Denial of Service Vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol handler of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of CAPWAP packets. An attacker could exploit this vulnerability by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to restart, resulting in a DoS condition.

Una vulnerabilidad en el manejador del protocolo Control and Provisioning of Wireless Access Points (CAPWAP) del Software Cisco Wireless LAN Controller (WLC) podría permitir a un atacante no autenticado remoto causar una condición de denegación de servicio (DoS) sobre un dispositivo afectado. La vulnerabilidad es debido a una comprobación insuficiente de los paquetes CAPWAP. Un atacante podría explotar esta vulnerabilidad mediante el envío de un paquete CAPWAP malformado hacia un dispositivo afectado. Una explotación con éxito podría permitir a un atacante causar que el dispositivo afectado se reinicie, resultando en una condición DoS.

*Credits: N/A
CVSS Scores
Attack Vector
Network
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
Changed
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2019-12-12 CVE Reserved
  • 2020-04-15 CVE Published
  • 2023-03-07 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"
 5508 Wireless Controller Firmware
Search vendor "Cisco" for product "5508 Wireless Controller Firmware"
 8.8\(120.0\)
Search vendor "Cisco" for product "5508 Wireless Controller Firmware" and version "8.8\(120.0\)"
-
Affected
in Cisco
Search vendor "Cisco"
 5508 Wireless Controller
Search vendor "Cisco" for product "5508 Wireless Controller"
--
Safe
Cisco
Search vendor "Cisco"
 5520 Wireless Controller Firmware
Search vendor "Cisco" for product "5520 Wireless Controller Firmware"
 8.8\(120.0\)
Search vendor "Cisco" for product "5520 Wireless Controller Firmware" and version "8.8\(120.0\)"
-
Affected
in Cisco
Search vendor "Cisco"
 5520 Wireless Controller
Search vendor "Cisco" for product "5520 Wireless Controller"
--
Safe