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CVE-2026-62839

Опубликовано: 11 авг. 2026
Источник: msrc
CVSS3: 6.5
EPSS Низкий

Описание

Microsoft SharePoint Server Spoofing Vulnerability

Insufficiently protected credentials in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

FAQ

There are multiple update packages available for some of the affected software. Do I need to install all the updates listed in the Security Updates table for the software?

Yes. Customers should apply all updates offered for the software installed on their systems. If multiple updates apply, they can be installed in any order.

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.

What type of information could be disclosed by this vulnerability?

Exploiting this vulnerability could allow the disclosure of NetNTLMv2 hashes.

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: 45%
0.00577
Низкий

6.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 6.5
nvd
2 дня назад

Insufficiently protected credentials in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

CVSS3: 6.5
github
2 дня назад

Insufficiently protected credentials in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

EPSS

Процентиль: 45%
0.00577
Низкий

6.5 Medium

CVSS3