NCSC Releases Alert on Microsoft SharePoint Vulnerability

2020-10-1600:00:00

us-cert.cisa.gov

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

JSON

The United Kingdom (UK) National Cyber Security Centre (NCSC) has released an [Alert](<https://www.ncsc.gov.uk/news/sharepoint-vulnerability-uk-organisations >) to address a vulnerability—CVE-2020-16952—affecting Microsoft SharePoint server. An attacker could exploit this vulnerability to take control of an affected system. Applying patches from Microsoft’s October 2020 Security Advisory for CVE-2020-16952 can prevent exploitation of this vulnerability.

The Cybersecurity and Infrastructure Security Agency (CISA) encourages administrators to review the NCSC Alert and the Microsoft Security Advisory for CVE-2020-16952 for more information.

This product is provided subject to this Notification and this Privacy & Use policy.

Please share your thoughts.

We recently updated our anonymous product survey; we’d welcome your feedback.