CVE-2026-21535
Microsoft Teams Information Disclosure Vulnerability
- State
- Published
- Severity
- 8.2 High
- Published
- Feb 19, 2026
- Updated
- Aug 19, 2026
- Reserved
- Dec 30, 2025
Description
Improper access control in Microsoft Teams allows an unauthorized attacker to disclose information over a network.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.2 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C | microsoft |
Weaknesses
- CWE-284 Improper Access Control
Affected Products
| Product | Versions |
|---|---|
Microsoft TeamsMicrosoft |
|
References
- Microsoft Teams Information Disclosure Vulnerabilityvendor-advisorypatch
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