CVE-2025-59248

HIGH 7.5CVE-2025-59248 · Published 14/10/2025 · updated 18/10/2026

In short

CVE-2025-59248 is a HIGH (CVSS 7.5) vulnerability affecting exchange server (microsoft), exchange server subscription edition (microsoft).
Chance of exploitation in the next 30 days (EPSS): 1.0%, higher than 63.4% of all vulnerabilities.
Fix: update to 15.02.2562.029 or later.

Package	Affected versions	Patched versions
exchange server microsoft	`= 2016= 2019`	No fix yet
exchange server subscription edition microsoft	`< 15.02.2562.029`	`15.02.2562.029`

Improper input validation in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

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Package

Affected versions

Patched versions

= 2016= 2019

No fix yet

< 15.02.2562.029

15.02.2562.029

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