CVE-2019-1920
Cisco IOS Access Points Software 802.11r Fast Transition Denial of Service Vulnerability
Published 7 y ago · modified 4 mo ago · JSON
Summary
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.
CISA SSVC assessment
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 23 mo ago
Exploit prediction (EPSS)
0.80% probability of exploitation in the next 30 days, higher than 57% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| CNA | 3.0 | 7.4 | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
| NVD | 3.1 | 7.4 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
| CNA | 3.0 | 7.4 | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
| NVD | 2.0 | 6.1 | AV:A/AC:L/Au:N/C:N/I:N/A:C |
Affected products
- Cisco Cisco Aironet Access Point Software
Classification
- Weakness
- CWE-20 Improper Input Validation
References
- tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20190717-aironet-dos · vendor-advisory, x_refsource_CISCO, x_transferred
- securityfocus.com /bid/109312 · vdb-entry, x_refsource_BID, x_transferred
Sources
- CVE List: CVE-2019-1920
- NVD: CVE-2019-1920
vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.