Vulnerability · NVD

CVE-2026-21535

CVE-2026-21535, high severity (CVSS 8.2): 1 tracked app concerned, all fixed or indeterminable on their current version.

Published on 2026-02-19

Improper access control in Microsoft Teams allows an unauthorized attacker to disclose information over a network.

Attack vector : Network No privileges required No user interaction

Show raw CVSS vector

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

EPSS 0.59% exploit very unlikely percentile 45.9%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Microsoft Teams Windows winget:Microsoft.Teams

Affected - Fixed in - Latest tracked Free undetermined

Vulnerable CPE configurations (1)

Vendor	Product	Platform	Versions	CPE 2.3 URI
microsoft	teams All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:teams:-:::::::*