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High severity · published Jul 17, 2019
CVE-2019-1920
A vulnerability in the 802.11r Fast Transition (FT) implementation for Cisco IOS Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial…
7.4
CVSS
0.8%
EPSS
No
On KEV
Description
A vulnerability in the 802.11r Fast Transition (FT) implementation for Cisco IOS Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected interface. The vulnerability is due to a lack of complete error handling condition for client authentication requests sent to a targeted interface configured for FT. An attacker could exploit this vulnerability by sending crafted authentication request traffic to the targeted interface, causing the device to restart unexpectedly.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AP
Access Points · Cisco
before 8.2.170.0; 8.3 before 8.3.150.0; 8.4 before 8.5.131.0; 8.6 before 8.8.100.0 · source: NVD
A3
Aironet 3700e Firmware · Cisco
15.3(3)jc14; 15.3(3)jd6 · source: NVD
A3
Aironet 3700i Firmware · Cisco
15.3(3)jc14; 15.3(3)jd6 · source: NVD
A3
Aironet 3700p Firmware · Cisco
15.3(3)jc14; 15.3(3)jd6 · source: NVD
Affected product
AP
Access Points
Cisco
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-1920
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-1920
Third Party Advisory
http://www.securityfocus.com/bid/109312
Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190717-aironet-dos
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