CVE-2026-21367

high-risk
Published 2026-04-06

Transient DOS when processing nonstandard FILS Discovery Frames with out-of-range action sizes during initial scans.

Do I need to act?

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0.03% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.6/10 High
NETWORK / HIGH complexity

Affected Vendors

56
/ 100
high-risk
Severity 23/34 · High
Exploitability 0/34 · Minimal
Exposure 33/34 · Critical