Improper input validation in Cisco iOS Xe Software 16.10.1
CVE-2020-3206
A vulnerability in the handling of IEEE 802.11w Protected Management Frames (PMFs) of Cisco Catalyst 9800 Series Wireless Controllers that are running Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to terminate a valid user connection to an affected device. The vulnerability exists because the affected software does not properly validate 802.11w disassociation and deauthentication PMFs that it receives. An attacker could exploit this vulnerability by sending a spoofed 802.11w PMF from a valid, authenticated client on a network adjacent to an affected device. A successful exploit could allow the attacker to terminate a single valid user connection to the affected device.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.005 (38.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L.
Affected products
- Cisco Ios Xe Software 16.10.1 — versions n/a
- Cisco Ios_xe — versions 16.10.1, 16.10.1e, 16.10.1s
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3206?
- CVE-2020-3206 is a medium-severity vulnerability in Cisco iOS Xe Software 16.10.1, classified under Improper Input Validation. CVSS score: 4.7/10. Published 2020-06-03.
- How severe is CVE-2020-3206?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2020-3206 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.