Microsoft Security Update – 22 February 2026

Microsoft has released a security update to address a vulnerability that affects Microsoft Teams.

The addressed vulnerability could allow the remote unauthorized attacker to obtain sensitive information from the affected system.

Microsoft Teams Information Disclosure Vulnerability (CVE-2026-21535):

  • CVSS: 8.2
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Consequences: Obtain Information
Vulnerabilities

CVE-2026-21535

Mitigations

The enterprise should deploy this patch as soon as the testing phase is completed.

Microsoft MSRC

References