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CVE-2026-20839

Опубликовано: 13 янв. 2026
Источник: msrc
CVSS3: 5.5
EPSS Низкий

Описание

Windows Client-Side Caching (CSC) Service Information Disclosure Vulnerability

Improper access control in Windows Client-Side Caching (CSC) Service allows an authorized attacker to disclose information locally.

FAQ

What type of information could be disclosed by this vulnerability?

An attacker who successfully exploited this vulnerability could potentially read portions of heap memory.

Обновления

ПродуктСтатьяОбновление
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2012
Windows Server 2012 (Server Core installation)
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)
Windows Server 2016
Windows 10 Version 1607 for 32-bit Systems
Windows 10 Version 1607 for x64-based Systems
Windows Server 2016 (Server Core installation)

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Возможность эксплуатации

Publicly Disclosed

No

Exploited

No

Latest Software Release

Exploitation Unlikely

EPSS

Процентиль: 11%
0.00039
Низкий

5.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.5
nvd
21 день назад

Improper access control in Windows Client-Side Caching (CSC) Service allows an authorized attacker to disclose information locally.

CVSS3: 5.5
github
21 день назад

Improper access control in Windows Client-Side Caching (CSC) Service allows an authorized attacker to disclose information locally.

CVSS3: 5.5
fstec
22 дня назад

Уязвимость службы CSC (Client-Side Caching) операционных систем Windows, позволяющая нарушителю раскрыть защищаемую информацию

EPSS

Процентиль: 11%
0.00039
Низкий

5.5 Medium

CVSS3