CVE-2024-20271

Published Mar 27, 2024 CVSS 3.1 · 8.6 High EPSS < 1% KEV · Not listed

Description

A vulnerability in the IP packet processing of Cisco Access Point (AP) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

This vulnerability is due to insufficient input validation of certain IPv4 packets. An attacker could exploit this vulnerability by sending a crafted IPv4 packet either to or through an affected device. A successful exploit could allow the attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. To successfully exploit this vulnerability, the attacker does not need to be associated with the affected AP. This vulnerability cannot be exploited by sending IPv6 packets.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco Aironet Access Point Software

affected

Version	Status	Constraints
`8.2.100.0`	affected	—
`8.2.130.0`	affected	—
`8.2.111.0`	affected	—
`8.2.110.0`	affected	—
`8.2.121.0`	affected	—
`8.2.141.0`	affected	—
`8.2.151.0`	affected	—
`8.2.160.0`	affected	—
`8.2.161.0`	affected	—
`8.2.164.0`	affected	—
`8.2.166.0`	affected	—
`8.2.170.0`	affected	—
`8.2.163.0`	affected	—
`8.3.102.0`	affected	—
`8.3.111.0`	affected	—
`8.3.112.0`	affected	—
`8.3.121.0`	affected	—
`8.3.122.0`	affected	—
`8.3.130.0`	affected	—
`8.3.131.0`	affected	—
`8.3.132.0`	affected	—
`8.3.133.0`	affected	—
`8.3.140.0`	affected	—
`8.3.141.0`	affected	—
`8.3.143.0`	affected	—
`8.3.150.0`	affected	—
`8.3.108.0`	affected	—
`8.3.90.53`	affected	—
`8.3.104.46`	affected	—
`8.3.200.200`	affected	—
`8.3.104.64`	affected	—
`8.3.15.165`	affected	—
`8.3.90.11`	affected	—
`8.3.135.0`	affected	—
`8.3.104.14`	affected	—
`8.3.90.36`	affected	—
`8.3.15.142`	affected	—
`8.3.104.37`	affected	—
`8.3.15.117`	affected	—
`8.3.15.120`	affected	—
`8.3.15.25`	affected	—
`8.3.15.158`	affected	—
`8.3.15.118`	affected	—
`8.3.90.25`	affected	—
`8.3.15.169`	affected	—
`8.3.90.58`	affected	—
`8.4.100.0`	affected	—
`8.4.1.199`	affected	—
`8.4.1.91`	affected	—
`8.4.1.142`	affected	—
`8.4.1.175`	affected	—
`8.4.1.218`	affected	—
`8.4.1.92`	affected	—
`8.5.103.0`	affected	—
`8.5.105.0`	affected	—
`8.5.110.0`	affected	—
`8.5.120.0`	affected	—
`8.5.131.0`	affected	—
`8.5.140.0`	affected	—
`8.5.135.0`	affected	—
`8.5.151.0`	affected	—
`8.5.101.0`	affected	—
`8.5.102.0`	affected	—
`8.5.161.0`	affected	—
`8.5.160.0`	affected	—
`8.5.100.0`	affected	—
`8.5.171.0`	affected	—
`8.5.164.0`	affected	—
`8.5.182.0`	affected	—
`8.5.182.11 ME`	affected	—
`8.7.102.0`	affected	—
`8.7.106.0`	affected	—
`8.7.1.16`	affected	—
`8.8.100.0`	affected	—
`8.8.111.0`	affected	—
`8.8.120.0`	affected	—
`8.8.125.0`	affected	—
`8.8.130.0`	affected	—
`8.6.101.0`	affected	—
`8.6.1.84`	affected	—
`8.6.1.70`	affected	—
`8.6.1.71`	affected	—
`8.9.100.0`	affected	—
`8.9.111.0`	affected	—
`8.10.105.0`	affected	—
`8.10.111.0`	affected	—
`8.10.130.0`	affected	—
`8.10.112.0`	affected	—
`8.10.122.0`	affected	—
`8.10.113.0`	affected	—
`8.10.121.0`	affected	—
`8.10.141.0`	affected	—
`8.10.142.0`	affected	—
`8.10.151.0`	affected	—
`8.10.150.0`	affected	—
`8.10.171.0`	affected	—
`8.10.181.0`	affected	—
`8.10.182.0`	affected	—
`8.10.161.0`	affected	—
`8.10.170.0`	affected	—
`8.10.183.0`	affected	—
`8.10.162.0`	affected	—
`8.10.185.0`	affected	—

Cisco

Cisco Business Wireless Access Point Software

affected

Version	Status	Constraints
`10.0.1.0`	affected	—
`10.0.2.0`	affected	—
`10.1.1.0`	affected	—
`10.1.2.0`	affected	—
`10.2.1.0`	affected	—
`10.2.2.0`	affected	—
`10.3.1.0`	affected	—
`10.3.1.1`	affected	—
`10.3.2.0`	affected	—
`1.0.0.13`	affected	—
`1.0.0.16`	affected	—
`1.0.0.3`	affected	—
`1.0.0.39`	affected	—
`1.0.0.4`	affected	—
`1.0.0.5`	affected	—
`1.0.0.7`	affected	—
`1.0.1.2`	affected	—
`1.0.1.3`	affected	—
`1.0.1.4`	affected	—
`1.0.1.5`	affected	—
`1.0.1.6`	affected	—
`1.0.1.7`	affected	—
`1.0.2.0`	affected	—
`1.0.2.13`	affected	—
`1.0.2.14`	affected	—
`1.0.2.15`	affected	—
`1.0.2.16`	affected	—
`1.0.2.17`	affected	—
`1.0.2.2`	affected	—
`1.0.2.8`	affected	—
`1.0.3.1`	affected	—
`1.0.4.4`	affected	—
`1.0.4.3`	affected	—
`1.0.6.6`	affected	—
`1.0.3.4`	affected	—
`1.0.6.8`	affected	—
`1.0.6.2`	affected	—
`1.0.2.3`	affected	—
`1.0.5.3`	affected	—
`1.0.1.10`	affected	—
`1.0.4.2`	affected	—
`1.0.6.5`	affected	—
`1.0.6.7`	affected	—
`1.0.5.0`	affected	—
`1.0.0.10`	affected	—
`1.0.0.12`	affected	—
`1.0.0.14`	affected	—
`1.0.0.15`	affected	—
`1.0.0.17`	affected	—
`1.0.0.9`	affected	—
`1.0.1.11`	affected	—
`1.0.1.12`	affected	—
`1.0.1.9`	affected	—
`1.0.2.6`	affected	—
`1.1.0.5`	affected	—
`1.1.0.7`	affected	—
`1.1.0.9`	affected	—
`1.1.1.0`	affected	—
`1.1.2.4`	affected	—
`1.1.4.6`	affected	—
`1.1.3.2`	affected	—
`1.1.4.0`	affected	—
`1.1.0.3`	affected	—
`1.1.0.4`	affected	—
`1.1.0.6`	affected	—
`1.1.2.3`	affected	—
`10.4.1.0`	affected	—
`10.4.2.0`	affected	—
`10.6.1.0`	affected	—
`10.7.1.0`	affected	—
`10.8.1.0`	affected	—
`1.2.0.2`	affected	—
`1.2.0.3`	affected	—
`1.2.1.3`	affected	—
`1.3.0.3`	affected	—
`1.3.0.4`	affected	—
`1.3.0.6`	affected	—
`1.3.0.7`	affected	—
`10.5.2.0`	affected	—

Cisco

Cisco Aironet Access Point Software (IOS XE Controller)

affected

Version	Status	Constraints
`16.10.1e`	affected	—
`16.10.1`	affected	—
`17.1.1t`	affected	—
`17.1.1s`	affected	—
`17.1.1`	affected	—
`16.11.1a`	affected	—
`16.11.1`	affected	—
`16.11.1c`	affected	—
`16.11.1b`	affected	—
`16.12.1s`	affected	—
`16.12.4`	affected	—
`16.12.1`	affected	—
`16.12.2s`	affected	—
`16.12.1t`	affected	—
`16.12.4a`	affected	—
`16.12.5`	affected	—
`16.12.3`	affected	—
`16.12.6`	affected	—
`16.12.8`	affected	—
`16.12.7`	affected	—
`16.12.6a`	affected	—
`17.3.1`	affected	—
`17.3.2a`	affected	—
`17.3.3`	affected	—
`17.3.4`	affected	—
`17.3.5`	affected	—
`17.3.2`	affected	—
`17.3.4c`	affected	—
`17.3.5a`	affected	—
`17.3.5b`	affected	—
`17.3.6`	affected	—
`17.2.1`	affected	—
`17.2.1a`	affected	—
`17.2.3`	affected	—
`17.2.2`	affected	—
`17.5.1`	affected	—
`17.4.1`	affected	—
`17.4.2`	affected	—
`17.6.1`	affected	—
`17.6.2`	affected	—
`17.6.3`	affected	—
`17.6.4`	affected	—
`17.6.5`	affected	—
`17.10.1`	affected	—
`17.9.1`	affected	—
`17.9.2`	affected	—
`17.9.3`	affected	—
`17.9.4`	affected	—
`17.9.4a`	affected	—
`17.7.1`	affected	—
`17.8.1`	affected	—
`17.11.1`	affected	—
`17.12.1`	affected	—

Configuration 1 [-]

OR	cpe:2.3:o:cisco:ios_xe::::::::
	cpe:2.3:o:cisco:ios_xe::::::::
	cpe:2.3:o:cisco:ios_xe::::::::
	cpe:2.3:o:cisco:ios_xe::::::::

Configuration 2 [-]

AND

cpe:2.3:a:cisco:business_access_points:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:cisco:business_140ac:-:::::::*
	cpe:2.3:h:cisco:business_140ac_access_point:-:::::::*
	cpe:2.3:h:cisco:business_141acm:-:::::::*
	cpe:2.3:h:cisco:business_142acm:-:::::::*
	cpe:2.3:h:cisco:business_143acm:-:::::::*
	cpe:2.3:h:cisco:business_145ac:-:::::::*
	cpe:2.3:h:cisco:business_145ac_access_point:-:::::::*
	cpe:2.3:h:cisco:business_240ac:-:::::::*

Configuration 3 [-]

AND

cpe:2.3:a:cisco:business_access_points:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:cisco:business_150ax:-:::::::*
	cpe:2.3:h:cisco:business_150ax_access_point:-:::::::*
	cpe:2.3:h:cisco:business_151axm:-:::::::*

Configuration 4 [-]

cpe:2.3:o:cisco:wireless_lan_controller_software:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2024-17986	A vulnerability in the IP packet processing of Cisco Access Point (AP) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of certain IPv4 packets. An attacker could exploit this vulnerability by sending a crafted IPv4 packet either to or through an affected device. A successful exploit could allow the attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. To successfully exploit this vulnerability, the attacker does not need to be associated with the affected AP. This vulnerability cannot be exploited by sending IPv6 packets.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.633% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ap-dos-h9TGGX6W

History

Aug 6, 2025 2:00 PM First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Cisco Cisco business 140ac Cisco business 140ac Access Point Cisco business 141acm Cisco business 142acm Cisco business 143acm Cisco business 145ac Cisco business 145ac Access Point Cisco business 150ax Cisco business 150ax Access Point Cisco business 151axm Cisco business 240ac Cisco business Access Points Cisco ios Xe Cisco wireless Lan Controller Software
Weaknesses		NVD-CWE-Other
CPEs		cpe:2.3:a:cisco:business_access_points:::::::: cpe:2.3:h:cisco:business_140ac:-:::::::* cpe:2.3:h:cisco:business_140ac_access_point:-:::::::* cpe:2.3:h:cisco:business_141acm:-:::::::* cpe:2.3:h:cisco:business_142acm:-:::::::* cpe:2.3:h:cisco:business_143acm:-:::::::* cpe:2.3:h:cisco:business_145ac:-:::::::* cpe:2.3:h:cisco:business_145ac_access_point:-:::::::* cpe:2.3:h:cisco:business_150ax:-:::::::* cpe:2.3:h:cisco:business_150ax_access_point:-:::::::* cpe:2.3:h:cisco:business_151axm:-:::::::* cpe:2.3:h:cisco:business_240ac:-:::::::* cpe:2.3:o:cisco:ios_xe:::::::: cpe:2.3:o:cisco:wireless_lan_controller_software::::::::
Vendors & Products		Cisco Cisco business 140ac Cisco business 140ac Access Point Cisco business 141acm Cisco business 142acm Cisco business 143acm Cisco business 145ac Cisco business 145ac Access Point Cisco business 150ax Cisco business 150ax Access Point Cisco business 151axm Cisco business 240ac Cisco business Access Points Cisco ios Xe Cisco wireless Lan Controller Software

Subscriptions

Cisco Business 140ac Business 140ac Access Point Business 141acm Business 142acm Business 143acm Business 145ac Business 145ac Access Point Business 150ax Business 150ax Access Point Business 151axm Business 240ac Business Access Points Ios Xe Wireless Lan Controller Software

Weaknesses