// For flags

CVE-2021-1565

Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Denial of Service Vulnerabilities

Severity Score

8.6
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. These vulnerabilities are due to insufficient validation of CAPWAP packets. An attacker could exploit the vulnerabilities by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition.

Varias vulnerabilidades en el procesamiento del protocolo Control and Provisioning of Wireless Access Points (CAPWAP) de Cisco IOS XE Software para Cisco Catalyst 9000 Family Wireless Controllers podrían permitir a un atacante remoto no autenticado causar una condición de denegación de servicio (DoS) en un dispositivo afectado. Estas vulnerabilidades son debido a que la comprobación de los paquetes CAPWAP es insuficiente. Un atacante podría explotar las vulnerabilidades mediante el envío de un paquete CAPWAP malformado a un dispositivo afectado. Una explotación con éxito podría permitir al atacante causar que el dispositivo afectado se bloquee y se recargue, resultando en una condición de DoS

*Credits: N/A
CVSS Scores
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:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-11-13 CVE Reserved
  • 2021-09-23 CVE Published
  • 2024-06-07 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-415: Double Free
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"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-24p-a
Search vendor "Cisco" for product "Catalyst 9300-24p-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-24p-e
Search vendor "Cisco" for product "Catalyst 9300-24p-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-24s-a
Search vendor "Cisco" for product "Catalyst 9300-24s-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-24s-e
Search vendor "Cisco" for product "Catalyst 9300-24s-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-24t-a
Search vendor "Cisco" for product "Catalyst 9300-24t-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-24t-e
Search vendor "Cisco" for product "Catalyst 9300-24t-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-24u-a
Search vendor "Cisco" for product "Catalyst 9300-24u-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-24u-e
Search vendor "Cisco" for product "Catalyst 9300-24u-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-24ux-a
Search vendor "Cisco" for product "Catalyst 9300-24ux-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-24ux-e
Search vendor "Cisco" for product "Catalyst 9300-24ux-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-48p-a
Search vendor "Cisco" for product "Catalyst 9300-48p-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-48p-e
Search vendor "Cisco" for product "Catalyst 9300-48p-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-48s-a
Search vendor "Cisco" for product "Catalyst 9300-48s-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-48s-e
Search vendor "Cisco" for product "Catalyst 9300-48s-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-48t-a
Search vendor "Cisco" for product "Catalyst 9300-48t-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-48t-e
Search vendor "Cisco" for product "Catalyst 9300-48t-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-48u-a
Search vendor "Cisco" for product "Catalyst 9300-48u-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-48u-e
Search vendor "Cisco" for product "Catalyst 9300-48u-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-48un-a
Search vendor "Cisco" for product "Catalyst 9300-48un-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-48un-e
Search vendor "Cisco" for product "Catalyst 9300-48un-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-48uxm-a
Search vendor "Cisco" for product "Catalyst 9300-48uxm-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300-48uxm-e
Search vendor "Cisco" for product "Catalyst 9300-48uxm-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l
Search vendor "Cisco" for product "Catalyst 9300l"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l-24p-4g-a
Search vendor "Cisco" for product "Catalyst 9300l-24p-4g-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l-24p-4g-e
Search vendor "Cisco" for product "Catalyst 9300l-24p-4g-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l-24p-4x-a
Search vendor "Cisco" for product "Catalyst 9300l-24p-4x-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l-24p-4x-e
Search vendor "Cisco" for product "Catalyst 9300l-24p-4x-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l-24t-4g-a
Search vendor "Cisco" for product "Catalyst 9300l-24t-4g-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l-24t-4g-e
Search vendor "Cisco" for product "Catalyst 9300l-24t-4g-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l-24t-4x-a
Search vendor "Cisco" for product "Catalyst 9300l-24t-4x-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l-24t-4x-e
Search vendor "Cisco" for product "Catalyst 9300l-24t-4x-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l-48p-4g-a
Search vendor "Cisco" for product "Catalyst 9300l-48p-4g-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l-48p-4g-e
Search vendor "Cisco" for product "Catalyst 9300l-48p-4g-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l-48p-4x-a
Search vendor "Cisco" for product "Catalyst 9300l-48p-4x-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l-48p-4x-e
Search vendor "Cisco" for product "Catalyst 9300l-48p-4x-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l-48t-4g-a
Search vendor "Cisco" for product "Catalyst 9300l-48t-4g-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l-48t-4g-e
Search vendor "Cisco" for product "Catalyst 9300l-48t-4g-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l-48t-4x-a
Search vendor "Cisco" for product "Catalyst 9300l-48t-4x-a"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l-48t-4x-e
Search vendor "Cisco" for product "Catalyst 9300l-48t-4x-e"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9300l Stack
Search vendor "Cisco" for product "Catalyst 9300l Stack"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9400
Search vendor "Cisco" for product "Catalyst 9400"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9400 Supervisor Engine-1
Search vendor "Cisco" for product "Catalyst 9400 Supervisor Engine-1"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9407r
Search vendor "Cisco" for product "Catalyst 9407r"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9410r
Search vendor "Cisco" for product "Catalyst 9410r"
--
Safe
Cisco
Search vendor "Cisco"
Embedded Wireless Controller
Search vendor "Cisco" for product "Embedded Wireless Controller"
*-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9500
Search vendor "Cisco" for product "Catalyst 9500"
--
Safe
Cisco
Search vendor "Cisco"
Catalyst 9800 Firmware
Search vendor "Cisco" for product "Catalyst 9800 Firmware"
17.3
Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version "17.3"
-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9800-40
Search vendor "Cisco" for product "Catalyst 9800-40"
--
Safe
Cisco
Search vendor "Cisco"
Catalyst 9800 Firmware
Search vendor "Cisco" for product "Catalyst 9800 Firmware"
17.3
Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version "17.3"
-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9800-80
Search vendor "Cisco" for product "Catalyst 9800-80"
--
Safe
Cisco
Search vendor "Cisco"
Catalyst 9800 Firmware
Search vendor "Cisco" for product "Catalyst 9800 Firmware"
17.3
Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version "17.3"
-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9800-cl
Search vendor "Cisco" for product "Catalyst 9800-cl"
--
Safe
Cisco
Search vendor "Cisco"
Catalyst 9800 Firmware
Search vendor "Cisco" for product "Catalyst 9800 Firmware"
17.3
Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version "17.3"
-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9800-l
Search vendor "Cisco" for product "Catalyst 9800-l"
--
Safe
Cisco
Search vendor "Cisco"
Catalyst 9800 Firmware
Search vendor "Cisco" for product "Catalyst 9800 Firmware"
17.3
Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version "17.3"
-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9800-l-c
Search vendor "Cisco" for product "Catalyst 9800-l-c"
--
Safe
Cisco
Search vendor "Cisco"
Catalyst 9800 Firmware
Search vendor "Cisco" for product "Catalyst 9800 Firmware"
17.3
Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version "17.3"
-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9800-l-f
Search vendor "Cisco" for product "Catalyst 9800-l-f"
--
Safe
Cisco
Search vendor "Cisco"
Catalyst 9800 Firmware
Search vendor "Cisco" for product "Catalyst 9800 Firmware"
17.5.1
Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version "17.5.1"
-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9800-40
Search vendor "Cisco" for product "Catalyst 9800-40"
--
Safe
Cisco
Search vendor "Cisco"
Catalyst 9800 Firmware
Search vendor "Cisco" for product "Catalyst 9800 Firmware"
17.5.1
Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version "17.5.1"
-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9800-80
Search vendor "Cisco" for product "Catalyst 9800-80"
--
Safe
Cisco
Search vendor "Cisco"
Catalyst 9800 Firmware
Search vendor "Cisco" for product "Catalyst 9800 Firmware"
17.5.1
Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version "17.5.1"
-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9800-cl
Search vendor "Cisco" for product "Catalyst 9800-cl"
--
Safe
Cisco
Search vendor "Cisco"
Catalyst 9800 Firmware
Search vendor "Cisco" for product "Catalyst 9800 Firmware"
17.5.1
Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version "17.5.1"
-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9800-l
Search vendor "Cisco" for product "Catalyst 9800-l"
--
Safe
Cisco
Search vendor "Cisco"
Catalyst 9800 Firmware
Search vendor "Cisco" for product "Catalyst 9800 Firmware"
17.5.1
Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version "17.5.1"
-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9800-l-c
Search vendor "Cisco" for product "Catalyst 9800-l-c"
--
Safe
Cisco
Search vendor "Cisco"
Catalyst 9800 Firmware
Search vendor "Cisco" for product "Catalyst 9800 Firmware"
17.5.1
Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version "17.5.1"
-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9800-l-f
Search vendor "Cisco" for product "Catalyst 9800-l-f"
--
Safe
Cisco
Search vendor "Cisco"
Catalyst 9800 Firmware
Search vendor "Cisco" for product "Catalyst 9800 Firmware"
17.3
Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version "17.3"
-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9800-cl
Search vendor "Cisco" for product "Catalyst 9800-cl"
--
Safe
Cisco
Search vendor "Cisco"
Catalyst 9800 Firmware
Search vendor "Cisco" for product "Catalyst 9800 Firmware"
17.5.1
Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version "17.5.1"
-
Affected
in Cisco
Search vendor "Cisco"
Catalyst 9800-cl
Search vendor "Cisco" for product "Catalyst 9800-cl"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
3.15.1xbs
Search vendor "Cisco" for product "Ios Xe" and version "3.15.1xbs"
-
Affected
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
3.15.2xbs
Search vendor "Cisco" for product "Ios Xe" and version "3.15.2xbs"
-
Affected
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
17.3.1
Search vendor "Cisco" for product "Ios Xe" and version "17.3.1"
-
Affected
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
17.3.2
Search vendor "Cisco" for product "Ios Xe" and version "17.3.2"
-
Affected
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
17.4.1
Search vendor "Cisco" for product "Ios Xe" and version "17.4.1"
-
Affected
Cisco
Search vendor "Cisco"
Ios Xe
Search vendor "Cisco" for product "Ios Xe"
17.5.1
Search vendor "Cisco" for product "Ios Xe" and version "17.5.1"
-
Affected