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CVE-2026-62896NVD

Vulnerability Summary

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

Severity Level

CRITICAL(9.6)

Published Date

Aug 7, 2026

Last Modified

Aug 7, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

Data Pending

Root Weakness (CWE)

CWE-287: Improper Authentication ↗

When an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct.

CVSS v3.1 Base Metrics

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

External References

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

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