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CVE-2020-3206

14
FAUCET Score

CVE-2020-3206 is a medium-severity vulnerability affecting Cisco Catalyst 9800 Series Wireless Controllers running Cisco IOS XE Software. It allows an unauthenticated, adjacent attacker to terminate a valid user connection by sending a spoofed 802.11w Protected Management Frame (PMF). The attack requires adjacency and has low complexity, resulting in a denial of service for a single user. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
16.10.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:16.10.1:*:*:*:*:*:*:*
16.10.1eCPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:16.10.1e:*:*:*:*:*:*:*
16.10.1sCPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:16.10.1s:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.7MEDIUM

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
37.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 57th percentile among its peer group of 1,802 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

ciscopatch availablevia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-dos-AnvKvMxR
PatchVendor Advisory