CVE-2026-65813: Microsoft Exchange Server Elevation of Privilege Vulnerability
Microsoft Exchange Server Elevation of Privilege Vulnerability
Other sources
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 15.01.2507.072Patch KB5121576 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 15.02.2562.046Patch KB5121573 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 15.02.1748.049Patch KB5121574 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 15.02.1544.044Patch KB5121575
Event History
Frequently Asked Questions
What is the severity of CVE-2026-65813?
The severity of CVE-2026-65813 is rated as medium with a score of 6.5.
How do I fix CVE-2026-65813?
To fix CVE-2026-65813, apply the latest security patches provided by Microsoft for your Exchange Server version.
What types of systems are affected by CVE-2026-65813?
CVE-2026-65813 affects Microsoft Exchange Server 2019, Microsoft Exchange Server 2016, and Microsoft Exchange Server Subscription Edition RTM.
What is the impact of CVE-2026-65813?
CVE-2026-65813 allows an authorized attacker to elevate privileges via a server-side request forgery attack.
When was CVE-2026-65813 published?
CVE-2026-65813 was published on August 11, 2026.