Search/CVE-2026-83504
● CVE — Medium

CVE-2026-83504

VendormicrosoftProductwindows 11 24h2, windows 11 25h2, windows 11 26h1, windows 11 23h2DiscoveredOct 13, 2026UpdatedOct 28, 2026

Time-of-check time-of-use (toctou) race condition in Windows SmartScreen allows an authorized attacker to disclose information locally.

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CVSS v3.1
4.7 MEDIUM
EPSS
0.27%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Oct 29, 2026 → Oct 30, 2026
● 0.01pp
0.28% → 0.27% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorLOCAL
Attack ComplexityHIGH
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityNONE
AvailabilityNONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Connections
5 relationships
Timeline
disclosure → media coverage
Oct 13, 2026
Disclosure — published as a CVE record. · last revised by NVD Oct 28, 2026