CVE-2026-69378
High
Description
Uncontrolled recursion in Microsoft Exchange Server allows an unauthorized attacker to deny service over a network.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Microsoft Exchange Server
PublishedSep 8, 2026
First seenSep 8, 2026
Weakness typeCWE-674CWE-674
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
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