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The vulnerability of the driver for the afd.sys auxiliary function in Windows Sockets operating systems allows a hacker to increase their privileges.

🗓️ 12 Aug 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec
 bdu_fstec
🔗 bdu.fstec.ru👁 2 Views

Use-after-free in Windows afd.sys kernel driver enables privilege escalation.

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Refs
Vulners
Node
OR
microsoftwindows_server_2019Range<10.0.17763.9115
microsoftwindows_10_1809Range<10.0.17763.9115
microsoftwindows_11_23h2Range<10.0.22631.7517
microsoftwindows_11_25h2Range<10.0.26200.9168
microsoftwindows_11_25h2Range<10.0.26100.9106
microsoftwindows_10_22h2Range<10.0.19045.7663
microsoftwindows_10_21h2Range<10.0.19044.7663
microsoftwindows_server_2022Range<10.0.20348.5499
microsoftwindows_server_2022Range<10.0.20348.5440
microsoftwindows_11_24h2Range<10.0.26100.9168
microsoftwindows_11_24h2Range<10.0.26100.9106
microsoftwindows_11_24h2Range<10.0.26000.9106
microsoftwindows_server_2012Range<6.2.9200.26280
microsoftwindows_server_2016Range<10.0.14393.9418
microsoftwindows_10_1607Range<10.0.14393.9418
microsoftwindows_11_26h1Range<10.0.28000.2704
microsoftwindows_server_2025Range<10.0.26100.33296
microsoftwindows_server_2025Range<10.0.26100.33222

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12 Aug 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 26
CVSS 37
EPSS0.00332
2