What is CVE-2021-34519 vulnerability?

CVE-2021-34519 is a vulnerability in Microsoft SharePoint that allows network-adjacent attackers to tamper with update data.

How can an attacker exploit CVE-2021-34519 vulnerability?

An attacker requires user interaction to exploit CVE-2021-34519 by tampering with SharePoint Help updates.

What is the severity of CVE-2021-34519 vulnerability?

The severity of CVE-2021-34519 vulnerability is low with a CVSS severity score of 3.5.

Which versions of Microsoft SharePoint are affected by CVE-2021-34519 vulnerability?

Microsoft SharePoint Foundation 2013 SP1, Microsoft SharePoint Server 2013 SP1, and Microsoft SharePoint Server 2016 are affected by CVE-2021-34519 vulnerability.

How can I learn more about CVE-2021-34519 vulnerability?

You can find more information about CVE-2021-34519 vulnerability on the Microsoft Security Response Center (MSRC) website.

Vulnerability/
CVE-2021-34519

medium

5.3

14/7/2021

16/1/2024

4/8/2024

CVE-2021-34519: Microsoft SharePoint Missing Check of Message Integrity Vulnerability

First published: Wed Jul 14 2021(Updated: )

Microsoft SharePoint Server Information Disclosure Vulnerability

Credit: secure@microsoft.com secure@microsoft.com

Affected Software	Affected Version	How to fix
Microsoft SharePoint Foundation	=2013-sp1
Microsoft SharePoint Server	=2013-sp1
Microsoft SharePoint Server	=2016

Remedy

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34519

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Reference Links

Frequently Asked Questions

What is CVE-2021-34519 vulnerability?
CVE-2021-34519 is a vulnerability in Microsoft SharePoint that allows network-adjacent attackers to tamper with update data.
How can an attacker exploit CVE-2021-34519 vulnerability?
An attacker requires user interaction to exploit CVE-2021-34519 by tampering with SharePoint Help updates.
What is the severity of CVE-2021-34519 vulnerability?
The severity of CVE-2021-34519 vulnerability is low with a CVSS severity score of 3.5.
Which versions of Microsoft SharePoint are affected by CVE-2021-34519 vulnerability?
Microsoft SharePoint Foundation 2013 SP1, Microsoft SharePoint Server 2013 SP1, and Microsoft SharePoint Server 2016 are affected by CVE-2021-34519 vulnerability.
How can I learn more about CVE-2021-34519 vulnerability?
You can find more information about CVE-2021-34519 vulnerability on the Microsoft Security Response Center (MSRC) website.

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