{"id":"CVE-2026-26137","published":"2026-03-19T21:06:26Z","modified":"2026-06-19T18:18:13Z","title":"Microsoft Exchange Elevation of Privilege Vulnerability","vendor":"Microsoft","product":"Microsoft Exchange Online","tier":"tail","description":{"text":"Server-side request forgery (ssrf) in Microsoft Exchange allows an authorized attacker to elevate privileges over a network.","provenance":"source","from":"CVE.org"},"cvss":{"score":9.9,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L/E:U/RL:O/RC:C","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.00548,"percentile":0.45786,"provenance":"source"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26137","tags":["vendor-advisory","patch"]}],"priority":{"score":16.1,"factors":[{"name":"EPSS percentile","points":9.16},{"name":"CVSS severity","points":6.93}]},"vendorSlug":"microsoft","affectedVersions":[{"vendor":"Microsoft","product":"Microsoft Exchange Online","versions":["-"]}],"euvd":{"id":"EUVD-2026-13184","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-class-microsoft-exchange-server-cwe-918"}}