Cross-site request forgery in Microsoft Exchange Server Subscription Edition RTM - CVE-2026-118152
Published: November 11, 2026
Vulnerability identifier: #VU165051
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-118152
CWE-ID: CWE-352
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform spoofing by causing unauthorized actions in a victim's session.
The vulnerability exists due to insufficient protection against cross-site request forgery in Microsoft Exchange Server when processing requests originating from another site. A remote attacker can trick a victim into interacting with malicious content that submits forged requests to perform unauthorized actions under the victim's identity.
Affected software
Microsoft Exchange Server Subscription Edition RTM
How to mitigate CVE-2026-118152
Install security update from vendor's website.
Microsoft Exchange Server Subscription Edition RTM - update to 15.02.2562.057