VDB
CVE-2026-21535
CVE-2026-21535
PUBLISHED
CVSS 8.199999809265137 HIGH
Improper access control in Microsoft Teams allows an unauthorized attacker to disclose information over a network.
EPSS 0.09% · 25.7th percentile
Risk Scores
CVSS 3.1
8.199999809265137
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
EPSS Score
0.09%
25.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| microsoft | teams | -, - |
| Microsoft | Microsoft Teams | -, - |
Exploit Intelligence
- https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1 (msrc)
- CIRCL seen: CVE-2026-21535 (circl-sighting)
- CIRCL seen: CVE-2026-21535 (circl-sighting)
- Microsoft Teams Information Disclosure Vulnerability (circl)
Timeline
- Feb 10, 2026 CVE Published
- Feb 19, 2026 CVE Updated
- Feb 20, 2026 EPSS Score
- Feb 20, 2026 PoC Published
- Feb 20, 2026 PoC Published
- Feb 22, 2026 EPSS Score
- Feb 23, 2026 EPSS Score
- Feb 25, 2026 EPSS Score
- Feb 27, 2026 EPSS Score
- Feb 28, 2026 EPSS Score
- Mar 2, 2026 EPSS Score
- Mar 3, 2026 Security Advisory
References
- Microsoft Teams Information Disclosure Vulnerability vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-21535 advisory