CVE-2020-3552: Cisco Aironet Access Points Ethernet Wired Clients Denial of Service Vulnerability
First published: Thu Sep 24 2020(Updated: )
A vulnerability in the Ethernet packet handling of Cisco Aironet Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by connecting as a wired client to the Ethernet interface of an affected device and sending a series of specific packets within a short time frame. A successful exploit could allow the attacker to cause a NULL pointer access that results in a reload of the affected device.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Wireless LAN Controller | >=8.6<8.10.105.0 | |
| Cisco Aironet 1542d | ||
| Cisco Aironet 1542i | ||
| Cisco Aironet 1562d | ||
| Cisco Aironet 1562e | ||
| Cisco Aironet 1562i | ||
| Cisco Aironet 1810 | ||
| Cisco Aironet 1815 | ||
| Cisco Aironet 1830e | ||
| Cisco Aironet 1830i | ||
| Cisco Aironet 1840 | ||
| Cisco Aironet 1850e | ||
| Cisco Aironet 1850i | ||
| Cisco Aironet 2800e | ||
| Cisco Aironet 2800i | ||
| Cisco Aironet 3800e | ||
| Cisco Aironet 3800i | ||
| Cisco Aironet 3800p | ||
| Cisco Aironet 4800 | ||
| Cisco Business Access Points | >=10.0<10.1.1.0 | |
| Cisco Access Points | <16.12.4a | |
| Cisco Catalyst 9800-40 | ||
| Cisco Catalyst 9800-80 | ||
| Cisco Catalyst 9800-cl | ||
| Cisco Catalyst 9800-l | ||
| Cisco Catalyst 9800-l-c | ||
| Cisco Catalyst 9800-l-f | ||
| Cisco Aironet Access Point Software | =8.10\(1.255\) |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2020-3552.
What is the severity of CVE-2020-3552?
The severity of CVE-2020-3552 is high (7.4).
How does CVE-2020-3552 impact Cisco Aironet Access Points Software?
CVE-2020-3552 allows an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.
Which software versions are affected by CVE-2020-3552?
Cisco Wireless LAN Controller versions 8.6 to 8.10.105.0 are affected by CVE-2020-3552.
How can I fix CVE-2020-3552?
There is currently no fix available for CVE-2020-3552. It is recommended to follow the suggested mitigations provided by Cisco in their security advisory.
- agent/weakness
- agent/type
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/author
- agent/references
- agent/softwarecombine
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/title
- agent/last-modified-date
- agent/first-publish-date
- agent/tags
- agent/event
- vendor/cisco
- canonical/cisco wireless lan controller
- version/cisco wireless lan controller/8.6
- canonical/cisco aironet 1542d
- canonical/cisco aironet 1542i
- canonical/cisco aironet 1562d
- canonical/cisco aironet 1562e
- canonical/cisco aironet 1562i
- canonical/cisco aironet 1810
- canonical/cisco aironet 1815
- canonical/cisco aironet 1830e
- canonical/cisco aironet 1830i
- canonical/cisco aironet 1840
- canonical/cisco aironet 1850e
- canonical/cisco aironet 1850i
- canonical/cisco aironet 2800e
- canonical/cisco aironet 2800i
- canonical/cisco aironet 3800e
- canonical/cisco aironet 3800i
- canonical/cisco aironet 3800p
- canonical/cisco aironet 4800
- canonical/cisco business access points
- version/cisco business access points/10.0
- canonical/cisco access points
- canonical/cisco catalyst 9800-40
- canonical/cisco catalyst 9800-80
- canonical/cisco catalyst 9800-cl
- canonical/cisco catalyst 9800-l
- canonical/cisco catalyst 9800-l-c
- canonical/cisco catalyst 9800-l-f
- canonical/cisco aironet access point software
- version/cisco aironet access point software/8.10\(1.255\)