Server-Side Request Forgery (SSRF) in Microsoft Exchange Server - CVE-2026-65813
Published: August 11, 2026
Vulnerability identifier: #VU141479
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-65813
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to elevate privileges.
The vulnerability exists due to server-side request forgery (ssrf) in Microsoft Exchange Server when handling network requests. A remote user can send a specially crafted request to elevate privileges.
Affected software
Microsoft Exchange Server
How to mitigate CVE-2026-65813
Install security update from vendor's website.
Microsoft Exchange Server - addressed in versions SE RTM Aug26SU 15.02.2562.046, 2016 CU23 Aug26SU 15.01.2507.072, 2019 CU14 Aug26SU 15.02.1544.044, 2019 CU15 Aug26SU 15.02.1748.049