CVE-2025-53782
High
Description
Incorrect implementation of authentication algorithm in Microsoft Exchange Server allows an unauthorized attacker to elevate privileges locally.
SeverityHigh
CVSS8.4
Exploit probability—
Product
Microsoft Exchange Server
PublishedOct 14, 2025
First seenOct 14, 2025
Weakness typeCWE-303CWE-303
How to fix
Update
- microsoft exchange_server_subscription_edition15.02.2562.029 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft exchange_server | 2016, 2019 | — |
| microsoft exchange_server_subscription_edition | v < 15.02.2562.029 | 15.02.2562.029 |
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