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Windows Function Discovery Service (fdwsd.dll) Elevation of Privilege Vulnerability

🗓️ 14 Apr 2026 14:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 1 Views

Function Discovery Service fdwsd.dll heap-based overflow enables local privilege escalation.

Related
Detection
Vulners
Node
microsoftwindows_server_2012_r2Range<6.3.9600.23132x64
OR
microsoftwindows_server_2012_r2Range<6.3.9600.23132x64
OR
microsoftwindows_server_2012Range<6.2.9200.26026x64
OR
microsoftwindows_server_2012Range<6.2.9200.26026x64
OR
microsoftwindows_server_2016Range<10.0.14393.9060
OR
microsoftwindows_server_2016Range<10.0.14393.9060
OR
microsoftwindows_10_1607Range<10.0.14393.9060x64
OR
microsoftwindows_10_1607Range<10.0.14393.9060x86
OR
microsoftwindows_server_2025Range<10.0.26100.32690
OR
microsoftwindows_11_24h2Range<10.0.26100.8246x64
OR
microsoftwindows_11_24h2Range<10.0.26100.8246x64
OR
microsoftwindows_server_23h2Range<10.0.25398.2274
OR
microsoftwindows_11_23h2Range<10.0.22631.6936x64
OR
microsoftwindows_11_23h2Range<10.0.22631.6936x64
OR
microsoftwindows_11_2h2Range<10.0.26200.8246x64
OR
microsoftwindows_11_25h2Range<10.0.26200.8246x64
OR
microsoftwindows_server_2025Range<10.0.26100.32690
OR
microsoftwindows_10_22h2Range<10.0.19045.7184x86
OR
microsoftwindows_10_22h2Range<10.0.19045.7184x64
OR
microsoftwindows_10_22h2Range<10.0.19045.7184x64
OR
microsoftwindows_10_21h2Range<10.0.19044.7184x64
OR
microsoftwindows_10_21h2Range<10.0.19044.7184x64
OR
microsoftwindows_10_21h2Range<10.0.19044.7184x86
OR
microsoftwindows_server_2022Range<10.0.20348.5020
OR
microsoftwindows_server_2022Range<10.0.20348.5020
OR
microsoftwindows_server_2019Range<10.0.17763.8644
OR
microsoftwindows_server_2019Range<10.0.17763.8644
OR
microsoftwindows_10_1809Range<10.0.17763.8644x64
OR
microsoftwindows_10_1809Range<10.0.17763.8644x86
OR
microsoftwindows_11_26h1Range<10.0.28000.1836x64
OR
microsoftwindows_11_26h1Range<10.0.28000.1836x64

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14 Apr 2026 14:00Current
6.5Medium risk
Vulners AI Score6.5
CVSS 3.17
EPSS0.00052
SSVC
1