5.3Medium

Microsoft Sharepoint Foundation

CVE-2021-34519

Microsoft SharePoint Server Information Disclosure Vulnerability

What this means for your business

  • It affects Microsoft Sharepoint Foundation. It matters if your company, or a supplier that handles your data, runs it.
  • An attacker can use it remotely, over a network, with an ordinary user login, and without anyone at your company clicking anything.

What to do

  1. 1Check whether your company or your suppliers run Microsoft Sharepoint Foundation, and which version. The affected versions are listed further down this page.
  2. 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

Scoring

CVSS
5.3 (v3.1)
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Assigned by
secure@microsoft.com

Dates

Published
2021-07-14
Last modified
2026-08-10
Sources
NVD

Affected products

  • Microsoft Sharepoint Foundation2013
  • Microsoft Sharepoint Server2013, 2016

As listed in the NVD configuration data. Not a statement about your estate.

References