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Vulnerability record · CVE-2022-20622 · published 15 April 2022

CVE-2022-20622: Cisco aironet access point software allocation without limits vulnerability

Cisco · Aironet Access Point Software

A vulnerability in IP ingress packet processing of the Cisco Embedded Wireless Controller with Catalyst Access Points Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, causing a denial of service (DoS) condition. The device may experience a performance degradation in traffic processing or high CPU usage prior to the unexpected reload. This vulnerability is due to improper rate limiting of IP packets to the management interface. An attacker could exploit this vulnerability by sending a steady stream of IP traffic at a high rate to the management interface of the affected device. A successful exploit could allow the attacker to cause the device to reload.

7.5 CVSS 3.1 High EPSS 1.4% · top 28.9% CWE-770 · Allocation without limits
7.5CVSS 3.1 base score, v2 7.8
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A vulnerability in IP ingress packet processing of the Cisco Embedded Wireless Controller with Catalyst Access Points Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, causing a denial of service (DoS) condition. The device may experience a performance degradation in traffic processing or high CPU usage prior to the unexpected reload. This vulnerability is due to improper rate limiting of IP packets to the management interface. An attacker could exploit this vulnerability by sending a steady stream of IP traffic at a high rate to the management interface of the affected device. A successful exploit could allow the attacker to cause the device to reload.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ap-ip-flood-dos-6hxxENVQ Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ap-ip-flood-dos-6hxxENVQ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2017-3831Cisco aironet access point software permissions and access controls vulnerabilityA vulnerability in the web-based GUI of Cisco Mobility Express 1800 Series Access Points could allow an unauthenticated, remote attacker to bypass au…EPSS 5.3%8.6CVE-2020-3560Cisco wireless lan controller uncontrolled resource consumption vulnerabilityA vulnerability in Cisco Aironet Access Points (APs) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) on an affecte…EPSS 1.4%8.6CVE-2020-3559Cisco wireless lan controller uncontrolled resource consumption vulnerabilityA vulnerability in Cisco Aironet Access Point (AP) Software could allow an unauthenticated, remote attacker to cause an affected device to reload. Th…EPSS 1.4%8.6CVE-2018-0234Cisco aironet access point software improper input validation vulnerabilityA vulnerability in the implementation of Point-to-Point Tunneling Protocol (PPTP) functionality in Cisco Aironet 1810, 1830, and 1850 Series Access P…EPSS 3.8%8.1CVE-2016-1419Cisco aironet access point software improper input validation vulnerabilityCisco Access Point devices with software 8.2(102.43) allow remote attackers to cause a denial of service (device reload) via crafted ARP packets, aka…EPSS 0.73%7.8CVE-2016-6362Cisco aironet access point software permissions and access controls vulnerabilityCisco Aironet 1800, 2800, and 3800 devices with software before 8.2.110.0, 8.2.12x before 8.2.121.0, and 8.3.x before 8.3.102.0 allow local users to …EPSS 0.40%7.8CVE-2015-6367Cisco aironet access point software vulnerabilityCisco Aironet 1800 devices with software 8.1(131.0) allow remote attackers to cause a denial of service (CPU consumption) by improperly establishing …EPSS 1.9%7.5CVE-2021-1437Cisco aironet access point software vulnerabilityA vulnerability in the FlexConnect Upgrade feature of Cisco Aironet Series Access Points Software could allow an unauthenticated, remote attacker to …EPSS 1.5%

Source: NIST National Vulnerability Database (record CVE-2022-20622), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.