8.2
High
CVE-2026-21535 Improper access control in Microsoft Teams allows an unauthorized attacker to disclose information over a network
Description
Improper access control in Microsoft Teams allows an unauthorized attacker to disclose information over a network.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft Teams | Versions not published |
Other CVEs of Microsoft Teams
The 7 CVEs of Microsoft Teams →
CVE-2026-65667
Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network
10.0
Critical
CVE-2026-62918
Improper verification of cryptographic signature in Microsoft Teams allows an unauthorized attacker to perform…
7.5
High
CVE-2026-62896
Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges over a network
9.6
Critical
CVE-2026-33823
Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network
9.6
Critical