High severity · published Sep 24, 2020
CVE-2020-3559
A vulnerability in Cisco Aironet Access Point (AP) Software could allow an unauthenticated, remote attacker to cause an affected device to reload
8.6
CVSS
1.4%
EPSS
No
On KEV
Description
A vulnerability in Cisco Aironet Access Point (AP) Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to improper handling of clients that are trying to connect to the AP. An attacker could exploit this vulnerability by sending authentication requests from multiple clients to an affected device. A successful exploit could allow the attacker to cause the affected device to reload.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AP
Access Points · Cisco
before 16.12.4a · source: NVD
AA
Aironet Access Point Software · Cisco
8.5(151.0); 17.2.0.26 · source: NVD
BA
Business Access Points · Cisco
10.0 before 10.1.1.0 · source: NVD
WL
Wireless Lan Controller · Cisco
8.9 before 8.10.112.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-3559
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-3559
Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aironet-dos-h3DCuLXw
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