CVE-2022-20769

Cisco Wireless LAN Controller AireOS Software FIPS Mode Denial of Service Vulnerability

MEDIUM
6.5
CVSS Score
Published: September 30, 2022 at 06:45 PM UTC
Updated: June 17, 2026 at 04:25 AM UTC
9 products affected across 1 vendorWireless LAN Controller Software2504 Wireless LAN Controller5508 Wireless Lan Controller

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

A vulnerability in the authentication functionality of Cisco Wireless LAN Controller (WLC) AireOS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient error validation. An attacker could exploit this vulnerability by sending crafted packets to an affected device. A successful exploit could allow the attacker to cause the wireless LAN controller to crash, resulting in a DoS condition. Note: This vulnerability affects only devices that have Federal Information Processing Standards (FIPS) mode enabled.

Affected

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

v < 8.10.171.0
Affected range stops below 8.10.171.0, so it looks safe — our inference, not a vendor statement
cisco-2504-wireless-lan-controller (environment) · cisco-3504-wireless-lan-controller (environment) · cisco-5508-wireless-lan-controller (environment) · cisco-5520-wireless-lan-controller (environment) · cisco-8540-wireless-lan-controller (environment) · cisco-flex-7510 (environment) · cisco-virtual-wireless-controller (environment)
All versions

Remediation

No guide yet

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-787

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