CVE-2023-20112

mediumpriority · track · 26EPSS 0.003 · 23 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.30% (23rd) EPSS

CVSS 6.5 · medium

Is it mine?

45 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A vulnerability in Cisco access point (AP) 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 validation of certain parameters within 802.11 frames. An attacker could exploit this vulnerability by sending a wireless 802.11 association request frame with crafted parameters to an affected device. A successful exploit could allow the attacker to cause an unexpected reload of an affected device, resulting in a DoS condition.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedCisco Aironet Access Point Softwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco Aironet Access Point Software (IOS XE Controller)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco Business Wireless Access Point Softwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

Technical severity, 0–10. One row per scoring source.

7.4

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–7.4

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.17.4highAV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.4highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.4highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · psirt@cisco.com USexploitability 2.8 · impact 4

v3.16mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.4highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · Cisco PSIRT US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USprimaryCWE-125USCWE-126US

affected products (45)

Products and version ranges known to be affected.

Cisco IOS XE for Wireless LAN Controllers < 17.3.5all versionscert_bundDEcpe:/o:cisco:ios_xe:for_wireless_lan_controllers__17.3.5
Cisco IOS XE for Wireless LAN Controllers < 17.6.3all versionscert_bundDEcpe:/o:cisco:ios_xe:for_wireless_lan_controllers__17.6.3
Cisco Wireless LAN Controllers < 8.10.171.0all versionscert_bundDEcpe:/a:cisco:wireless_lan_controllers:8.10.171.0
Cisco Cisco Aironet Access Point Softwareall versionscisco_csafUS
Cisco Cisco Aironet Access Point Software (IOS XE Controller)all versionscisco_csafUS
Cisco Cisco Business Wireless Access Point Softwareall versionscisco_csafUS
Cisco Cisco Aironet Access Point Software≤ n/aenisa_euvdEU
Cisco Systems Inc. Catalyst 9800 Embedded Wireless Controllers≤ 17.7fstec_bduRU
Cisco Systems Inc. Catalyst 9800 Embedded Wireless Controllers16.12 → 16.12.8fstec_bduRU
Cisco Systems Inc. Catalyst 9800 Embedded Wireless Controllers17.1 → 17.3.5fstec_bduRU
Cisco Systems Inc. Catalyst 9800 Embedded Wireless Controllers17.4 → 17.6.3fstec_bduRU
Cisco Systems Inc. Cisco Business 150 AP≤ 10.3.2.0fstec_bduRU
Cisco Systems Inc. Cisco Business 151 Mesh Extender≤ 10.3.2.0fstec_bduRU
Cisco Systems Inc. Wireless LAN controller8.9 → 8.10.171.0fstec_bduRU
cisco business 150ax firmware< 10.3.2.0nvdUScpe:2.3:o:cisco:business_150ax_firmware:*:*:*:*:*:*:*:*
cisco business 151axm firmware< 10.3.2.0nvdUScpe:2.3:o:cisco:business_151axm_firmware:*:*:*:*:*:*:*:*
cisco catalyst 9105ax firmware< 10.3.2.0nvdUScpe:2.3:o:cisco:catalyst_9105ax_firmware:*:*:*:*:*:*:*:*
cisco catalyst 9105axi firmware< 10.3.2.0nvdUScpe:2.3:o:cisco:catalyst_9105axi_firmware:*:*:*:*:*:*:*:*
cisco catalyst 9105axw firmware< 10.3.2.0nvdUScpe:2.3:o:cisco:catalyst_9105axw_firmware:*:*:*:*:*:*:*:*
cisco catalyst 9105i firmware< 10.3.2.0nvdUScpe:2.3:o:cisco:catalyst_9105i_firmware:*:*:*:*:*:*:*:*

showing 20 of 45

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0733Cisco Wireless LAN Controllers: Mehrere SchwachstellenDeutsch2023-03-22csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Cisco Wireless LAN Controllers und Cisco IOS XE ausnutzen, um einen Denial of Service Angriff durchzuführen und beliebigen Code auszuführen.
cisco-sa-ap-assoc-dos-D2SunWK2Cisco Access Point Software Association Request Denial of Service Vulnerability2023-03-22csaf · cisco_csafUS
A vulnerability in Cisco access point (AP) 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 validation of certain parameters within 802.11 frames. An attacker could exploit this vulnerability by sending a wireless 802.11 association request frame with crafted parameters to an affected device. A successful exploit could allow the attacker to cause an unexpected reload of an affected device, resulting in a DoS condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund cisco_csaf nvd NVD CVE.org MITRE

published 2023-03-23modified 2026-06-17

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+11869 more

references (4)

External citations — patches, advisories, analysis.

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