Search/CVE-2026-81963
● CVE — High

CVE-2026-81963

VendormicrosoftProductwindows 11 24h2, windows 11 25h2, windows 11 26h1, windows server 2025, windows 11 23h2DiscoveredSep 8, 2026UpdatedSep 9, 2026

Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally.

CVSS v3.1
7.8 HIGH
EPSS
0.39%
probability of exploitation in 30 days
CISA KEV
Listed
confirmed active exploitation
News coverage
6
sources referencing this CVE
Related IOCs
seen in the same coverage
Intelligence Reports5
5 intelligence reports available

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EPSS Trend
Sep 10, 2026 → Sep 25, 2026
▼ 0.24pp
0.63% → 0.39% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Connections
15 relationships
Timeline
disclosure → media coverage
Sep 8, 2026
Disclosure — published as a CVE record.
Sep 8, 2026
krebsonsecurity.com reports: Microsoft Plugs Nearly 1,000 Security Holes
Sep 9, 2026
theregister.com reports: Microsoft breaks Patch Tuesday record with 974-CVE deluge
Sep 9, 2026
advisories.ncsc.nl reports: NCSC-2026-0353 [1.01] [M/H] Kwetsbaarheden verholpen in Microsoft Windows
Sep 9, 2026
malwarebytes.com reports: Microsoft fixes record 964 flaws, including 2 exploited zero-days
Sep 14, 2026
research.checkpoint.com reports: 14th September – Threat Intelligence Report
Oct 5, 2026
thehackernews.com reports: ⚡ Weekly Recap: NetScaler and FortiMail 0-Days, AI Coding Leaks, Spectre v2 and Ransomware Arrests
Public PoC (1)
Unverified third-party code — review before executing.