CVE-2026-118152

Microsoft Exchange Server Spoofing Vulnerability

CVE-2026-118152 is fixed in Microsoft Exchange Server Subscription Edition RTM on 1 platform by KB5133453 (version ), released November 10, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

6.5

Important

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

n/a

<p>Cross-site request forgery (csrf) in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Microsoft Exchange Server Subscription Edition RTM		KB5133453	Nov 10, 2026

Details

Published
November 10, 2026
Weakness
Cross-Site Request Forgery (CSRF)
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118152

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