Microsoft Exchange Server Elevation of Privilege VulnerabilityVendor advisorypatch
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65813 CVE-2026-65813
MEDIUM
Microsoft Exchange Server Elevation of Privilege Vulnerability
Record summary
CVE-2026-65813 has a selected CVSS score of 6.5 (medium).
Description
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
Description source: GitHub Advisory
Exploitation context
CISA SSVC decision
ExploitationNone
AutomatableNo
Technical impactTotal
CISA Coordinator · SSVC 2.0.3 · Evaluated Aug 12, 2026 · Source: CVE List
Affected products and versions
4| Product | Source | Version range | Status |
|---|---|---|---|
Microsoft Exchange Server 2016 Cumulative Update 23Browse Microsoft / Microsoft Exchange Server 2016 Cumulative Update 23 | CVE List | 15.01.0.0 to < 15.01.2507.072 | affected |
Microsoft Exchange Server 2019 Cumulative Update 14Browse Microsoft / Microsoft Exchange Server 2019 Cumulative Update 14 | CVE List | 15.02.0.0 to < 15.02.1544.044 | affected |
Microsoft Exchange Server 2019 Cumulative Update 15Browse Microsoft / Microsoft Exchange Server 2019 Cumulative Update 15 | CVE List | 15.02.0.0 to < 15.02.1748.049 | affected |
Microsoft Exchange Server Subscription Edition RTMBrowse Microsoft / Microsoft Exchange Server Subscription Edition RTM | CVE List | 15.02.0.0 to < 15.02.2562.046 | affected |
References
2nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2026-65813