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CVE-20XX-?

CVE-2026-69641

9.1 CRITICAL 0.9% exploit odds Fix listed Auth & access Server

What it is

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

At a glance

Exploitability: Can be exploited over the network with an admin-level account. High risk of data exposure, data tampering, service disruption.
Exploit odds: 0.9% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-09-08 18:19 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-09-22 12:23 UTC Last updatedMost recent change to the record

Details

Published: 2026-09-08 18:19 UTC
Last modified: 2026-09-22 12:23 UTC
Exploit probability: 0.9% · EPSS, next 30 days
Weakness: CWE-862 · Missing authorization
Record status: Analyzed

Affected

Microsoft Exchange Server 2016
Microsoft Exchange Server 2019
Microsoft Exchange Server Subscription Edition < 15.02.2562.049

Attack profile CVSS 3.1 · 9.1

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None
Scope: Changed
Confidentiality: High
Integrity: High
Availability: High

Raw vector

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

Meme: I wake up, CVE-2026-69641

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Fix and advisories

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69641

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69641

NVD record · CVE.org record