7.1High
Microsoft Azure Active Directory Connect
CVE-2021-36949
Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability
What this means for your business
- It affects Microsoft Azure Active Directory Connect. It matters if your company, or a supplier that handles your data, runs it.
- An attacker can use it from inside the same network, with an ordinary user login, and without anyone at your company clicking anything.
What to do
- 1Check whether your company or your suppliers run Microsoft Azure Active Directory Connect, and which version. The affected versions are listed further down this page.
- 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.
Not sure if your company is exposed?
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Scoring
- CVSS
- 7.1 (v3.1)
- Vector
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H- Weakness
- CWE-287
- Assigned by
- secure@microsoft.com
Dates
- Published
- 2021-08-12
- Last modified
- 2026-08-10
- Sources
- NVD
Affected products
- Microsoft Azure Active Directory Connect1.3.20.0 - 1.6.11.3, 2.0.3.0 - 2.0.9.0
- Microsoft Azure Active Directory Connect Provisioning Agent- 1.1.582.0
As listed in the NVD configuration data. Not a statement about your estate.