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High severity8.1NVD Advisory· Published Sep 8, 2026

CVE-2026-69380

CVE-2026-69380

Description

Missing authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

Affected products

1

Microsoft/Exchange Serverllm-fuzzy

Patches

Vulnerability mechanics

References

1

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69380nvd

News mentions

2

Microsoft’s September 2026 Patch Tuesday addresses 964 CVEs (CVE-2026-81963, CVE-2026-85880)
Tenable Blog · Sep 8, 2026
Massive Microsoft Patch Tuesday September 2026 – 973 Vulnerabilities Fixed, Including 2 Zero-Days
Cyber Security News · Sep 8, 2026