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NVD Vulnerability Details :
CVE-2026-21535
Awaiting Analysis
More InfoOfficial Page
Source-secure@microsoft.com
View Known Exploited Vulnerability (KEV) details
Published At-19 Feb, 2026 | 23:16
Updated At-20 Feb, 2026 | 13:49

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

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.18.2HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Type: Primary
Version: 3.1
Base score: 8.2
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-284Primarysecure@microsoft.com
CWE ID: CWE-284
Type: Primary
Source: secure@microsoft.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21535secure@microsoft.com
N/A
Hyperlink: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21535
Source: secure@microsoft.com
Resource: N/A
Change History
0Changes found
Details not found