Search/CVE-2026-83871
● CVE — High

CVE-2026-83871

VendormicrosoftProductwindows 10 1809, windows 10 21h2, windows 10 22h2, windows 11 24h2, windows 11 25h2, windows 11 26h1, windows server 2019, windows server 2022, windows server 2025, windows 11 23h2, windows 11 26h2DiscoveredOct 13, 2026UpdatedOct 21, 2026

Heap-based buffer overflow in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.

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CVSS v3.1
7 HIGH
EPSS
0.22%
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
Intelligence Reports6
6 intelligence reports available

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EPSS Trend
Oct 23, 2026 → Oct 26, 2026
▲ 0.03pp
0.19% → 0.22% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorLOCAL
Attack ComplexityHIGH
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Connections
13 relationships
Timeline
disclosure → media coverage
Oct 13, 2026
Disclosure — published as a CVE record. · last revised by NVD Oct 21, 2026