PT-2025-30: Разыменование нулевого указателя (NULL Pointer dereference) в Windows Ancillary Function Driver for WinSock

Вектор уязвимости:

• Базовый вектор уязвимости (CVSSv3.1): CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

• Уровень критичности уязвимости (CVSSv3.1): 7.8 (high)

Описание уязвимости:

В Windows Ancillary Function Driver for WinSock обнаружена уязвимость «Разыменование нулевого указателя (NULL Pointer dereference)». Уязвимость позволяет авторизованному злоумышленнику получить привилегии SYSTEM. Проблема затрагивает следующие продукты:

• Windows 10 Version 1809 for x64-based & 32-bit Systems (Versions to 10.0.17763.7678)
• Windows Server 2012 R2 & Windows Server 2012 R2 (Server Core installation) (Versions to 6.3.9600.22725)
• Windows Server 2012 & Windows Server 2012 (Server Core installation) (Versions to 6.2.9200.25622)
• Windows Server 2008 R2 for x64-based Systems Service Pack 1 & Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) (Versions to 6.1.7601.27872)
• Windows Server 2008 for x64-based/32-bit Systems Service Pack 2 & Windows Server 2008 for x64-based/32-bit Systems Service Pack 2 (Server Core installation) (Versions to 6.0.6003.23471)
• Windows Server 2016 & Windows Server 2016 (Server Core installation) (Versions to 10.0.14393.8330)
• Windows 10 Version 1607 for x64-based/32-bit Systems (Versions to 10.0.14393.8330)
• Windows 10 for x64-based/32-bit Systems (Versions to 10.0.10240.21100)
• Windows Server 2025 & Windows Server 2025 (Server Core installation) & Windows 11 Version 24H2 for x64-based/ARM64-based Systems (Versions to 10.0.26100.4946 & 10.0.26100.4851)
• Windows Server 2022, 23H2 Edition (Server Core installation) (Versions to 10.0.25398.1791)
• Windows 10 Version 21H2 for x64-based/ARM64-based/32-bit Systems (Versions to 10.0.19044.6216)
• Windows 10 Version 22H2 for x64-based/ARM64-based/32-bit Systems (Versions to 10.0.19045.6216)
• Windows 11 Version 22H2 for x64-based/ARM64-based Systems (Versions to 10.0.22621.5768)
• Windows 11 Version 23H2 for x64-based/ARM64-based Systems (Versions to 10.0.22631.5768)
• Windows Server 2019 & Windows Server 2019 (Server Core installation) (Versions to 10.0.17763.7678)
• Windows Server 2022 & Windows Server 2022 (Server Core installation) (Versions to 10.0.20348.4052 & 10.0.20348.3989)

Статус уязвимости: Подтверждена производителем

Дата исправления уязвимости: 12.08.2025

Рекомендации:

• Security advisory

Прочая информация: Пресс-релиз

Исследователь: Марат Гаянов (Positive Technologies)