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Vulnerability record · CVE-2026-62896 · published 7 August 2026

CVE-2026-62896: Microsoft teams improper authentication vulnerability

Microsoft · Teams

Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges over a network.

9.6 CVSS 3.1 Critical EPSS 0.69% · top 49.2% CWE-287 · Improper authentication
9.6CVSS 3.1 base score
0.69%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
7 Aug 2026Last modified by NVD

Description

Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges over a network.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62896 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-62896), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.