CVE-2023-20056

Cisco Access Point Software Denial of Service Vulnerability

MEDIUM

5.5

CVSS Score

Published: March 23, 2023 at 12:00 AM UTC

Updated: June 17, 2026 at 05:29 AM UTC

61 products affected across 1 vendorIOS XeWireless LAN Controller SoftwareAironet Access Point

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

A vulnerability in the management CLI of Cisco access point (AP) software could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of commands supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to cause an affected device to reload spontaneously, resulting in a DoS condition.

Affected

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

Aironet Access Point · Cisco

95%

v < 17.9.0.135

Affected range stops below 17.9.0.135, so it looks safe — our inference, not a vendor statement

cisco-aironet-1540 (environment) · cisco-aironet-1542d (environment) · cisco-aironet-1542i (environment) · cisco-aironet-1560 (environment) · cisco-aironet-1562d (environment) · cisco-aironet-1562e (environment) · cisco-aironet-1562i (environment) · cisco-aironet-1800 (environment) · cisco-aironet-1800i (environment) · cisco-aironet-1810 (environment) · cisco-aironet-1810w (environment) · cisco-aironet-1815 (environment) · cisco-aironet-1815i (environment) · cisco-aironet-1815m (environment) · cisco-aironet-1815t (environment) · cisco-aironet-1815w (environment) · cisco-aironet-2800 (environment) · cisco-aironet-2800e (environment) · cisco-aironet-2800i (environment) · cisco-aironet-3800 (environment) · cisco-aironet-3800e (environment) · cisco-aironet-3800i (environment) · cisco-aironet-3800p (environment) · cisco-aironet-4800 (environment) · cisco-catalyst-9100 (environment) · cisco-catalyst-9105 (environment) · cisco-catalyst-9105ax (environment) · cisco-catalyst-9105axi (environment) · cisco-catalyst-9105axw (environment) · cisco-catalyst-9115 (environment) · cisco-catalyst-9115-ap (environment) · cisco-catalyst-9115ax (environment) · cisco-catalyst-9115axe (environment) · cisco-catalyst-9115axi (environment) · cisco-catalyst-9117 (environment) · cisco-catalyst-9117-ap (environment) · cisco-catalyst-9117ax (environment) · cisco-catalyst-9117axi (environment) · cisco-catalyst-9120 (environment) · cisco-catalyst-9120-ap (environment) · cisco-catalyst-9120ax (environment) · cisco-catalyst-9120axe (environment) · cisco-catalyst-9120axi (environment) · cisco-catalyst-9120axp (environment) · cisco-catalyst-9124 (environment) · cisco-catalyst-9124ax (environment) · cisco-catalyst-9124axd (environment) · cisco-catalyst-9124axi (environment) · cisco-catalyst-9130 (environment) · cisco-catalyst-9130-ap (environment) · cisco-catalyst-9130ax (environment) · cisco-catalyst-9130axe (environment) · cisco-catalyst-9130axi (environment) · cisco-catalyst-iw6300 (environment) · cisco-catalyst-iw6300-ac (environment) · cisco-catalyst-iw6300-dc (environment) · cisco-catalyst-iw6300-dcw (environment)

IOS Xe · Cisco

95%

v < 16.12.817.1 ≤ v < 17.3.617.4 ≤ v < 17.6.517.7 ≤ v < 17.9.2

Affected range stops below 16.12.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 17.3.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 17.6.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 17.9.2, so it looks safe — our inference, not a vendor statement

Wireless LAN Controller Software · Cisco

95%

v < 8.10.183.0

Affected range stops below 8.10.183.0, so it looks safe — our inference, not a vendor statement

cisco-esw6300 (environment)