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CVE-2026-40365

Опубликовано: 12 мая 2026
Источник: msrc
CVSS3: 8.8
EPSS Низкий

Описание

Microsoft SharePoint Server Remote Code Execution Vulnerability

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

FAQ

According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?

Any authenticated attacker could trigger this vulnerability. It does not require admin or other elevated privileges.

How could an attacker exploit the vulnerability?

In a network-based attack, an authenticated attacker, as at least a Site Owner, could write arbitrary code to inject and execute code remotely on the SharePoint Server.

I am running SharePoint Server 2016. Do the updates for SharePoint Enterprise Server 2016 also apply to the version I am running?

Yes. The same KB number applies to both SharePoint Server 2016 and SharePoint Enterprise Server 2016. Customers running either version should install the security update to be protected from this vulnerability.

Обновления

ПродуктСтатьяОбновление
Microsoft SharePoint Enterprise Server 2016
Microsoft SharePoint Server 2019
Microsoft SharePoint Server Subscription Edition

Показывать по

Возможность эксплуатации

Publicly Disclosed

No

Exploited

No

Latest Software Release

Exploitation Less Likely

EPSS

Процентиль: 58%
0.00961
Низкий

8.8 High

CVSS3

Связанные уязвимости

CVSS3: 8.8
nvd
3 месяца назад

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

CVSS3: 8.8
github
3 месяца назад

Insufficient granularity of access control in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

CVSS3: 8.8
fstec
3 месяца назад

Уязвимость пакетов программ Microsoft SharePoint Server, Microsoft SharePoint Foundation, Microsoft SharePoint Enterprise Server, связанная с недостатками разграничения доступа, позволяющая нарушителю выполнить произвольный код

EPSS

Процентиль: 58%
0.00961
Низкий

8.8 High

CVSS3