CVE-2026-21535

HIGH EPSS 43.9%
Published Feb 19, 20264mo ago · Modified Feb 20, 20264mo ago
7.5 CVSS 3.1
High
Find Similar
Published Feb 19, 2026 4mo ago
Last Modified Feb 20, 2026 4mo ago

Description

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

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
43.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-284

Affected Products 1

VendorProductVersionRange
microsoftteams*any

References 1

  • msrc.microsoft.com https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21535
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.