CVE-2026-96940
High
Description
Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Microsoft Exchange Server
PublishedOct 2, 2026
First seenOct 2, 2026
Weakness typeCWE-1390CWE-1390
How to fix
Update
- microsoft exchange_server_subscription_edition15.02.2562.053 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft exchange_server | 2016, 2019 | — |
| microsoft exchange_server_subscription_edition | v < 15.02.2562.053 | 15.02.2562.053 |
Check your version
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