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HIGH · 8.6

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. The vulnerability is due to improper handling of clie...

Vulnerability 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 Score

8.6

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
CiscoWireless Lan Controller>= 8.9, < 8.10.112.0
Cisco1111-4Pwe-
Cisco1111-8Plteeawb-
Cisco1111-8Pwb-
Cisco1113-8Plteeawe-
Cisco1113-8Pmwe-
Cisco1113-8Pwe-
Cisco1116-4Plteeawe-
Cisco1116-4Pwe-
Cisco1117-4Plteeawe-
Cisco1117-4Pmlteeawe-
Cisco1117-4Pmwe-
Cisco1117-4Pwe-
CiscoAironet 1815-
CiscoAironet 1830E-
CiscoAironet 1830I-
CiscoAironet 1850E-
CiscoAironet 1850I-
CiscoBusiness 140Ac-
CiscoBusiness 145Ac-

Related Weaknesses (CWE)

CWE-400

References

FAQ

What is CVE-2020-3559?

CVE-2020-3559 is a vulnerability with a CVSS score of 8.6 (HIGH). 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 clie...

How severe is CVE-2020-3559?

CVE-2020-3559 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-3559?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Wireless Lan Controller, Cisco 1111-4Pwe, Cisco 1111-8Plteeawb, Cisco 1111-8Pwb, Cisco 1113-8Plteeawe.