CVE Watchtower

CVE-2026-62911NVD

Vulnerability Summary

Authentication bypass by capture-replay in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

Severity Level

HIGH(8.0)

Published Date

Aug 11, 2026

Last Modified

Aug 13, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.95%Probability

Root Weakness (CWE)

CWE-294: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v3.1 Base Metrics

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

External References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62911

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CVE-2026-62911NVD

Vulnerability Summary

External References