CVE-2026-69641
Critical
Description
Missing authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
SeverityCritical
CVSS9.1
Exploit probability—
Product
Microsoft Exchange Server
PublishedSep 8, 2026
First seenSep 8, 2026
Weakness typeCWE-862Missing authorization
How to fix
Update
- microsoft exchange_server_subscription_edition15.02.2562.049 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft exchange_server | 2016, 2019 | — |
| microsoft exchange_server_subscription_edition | v < 15.02.2562.049 | 15.02.2562.049 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.