CVE-2022-20622

Cisco Embedded Wireless Controller with Catalyst Access Points IP Flood Denial of Service Vulnerability

HIGH
7.5
CVSS Score
Published: April 15, 2022 at 02:17 PM UTC
Updated: June 17, 2026 at 04:24 AM UTC
1 product affected across 1 vendorAironet Access Point

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Severity
HIGH7.5
Exploit prediction
EPSS 1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

17.3 ≤ v < 17.3.417.4 ≤ v < 17.6.1
Affected range stops below 17.3.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.6.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-770

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