{"id":"CVE-2026-109499","aliases":["EUVD-2026-122144","GHSA-vgp8-646v-p2rw"],"status":"published","title":"Microsoft Office SharePoint Remote Code Execution Vulnerability","description":"Access of resource using incompatible type ('type confusion') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-13","score":0.00913,"percentile":0.60602,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-843"],"published":"2026-11-10T18:20:50Z","modified":"2026-11-10T21:32:38Z","products":[{"vendor":"microsoft","product":"microsoft sharepoint server subscription edition"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-109499","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109499"},{"url":"https://github.com/advisories/GHSA-vgp8-646v-p2rw"}],"sources":{"cve":[{"id":"CVE-2026-109499","title":"Microsoft Office SharePoint Remote Code Execution Vulnerability","description":"Access of resource using incompatible type ('type confusion') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.","status":"published","published":"2026-11-10T18:20:50.29Z","modified":"2026-11-12T21:48:02.872Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-843"],"updated_at":"2026-11-10T19:39:57.855077Z"}],"euvd":[{"id":"EUVD-2026-122144","description":"Access of resource using incompatible type ('type confusion') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.","status":"published","published":"2026-11-10T18:20:50Z","modified":"2026-11-12T21:48:02Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T23:24:26.96779Z"}],"ghsa":[{"id":"GHSA-vgp8-646v-p2rw","title":"Access of resource using incompatible type ('type confusion') in Microsoft Office SharePoint...","description":"Access of resource using incompatible type ('type confusion') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.","status":"published","published":"2026-11-10T21:32:30Z","modified":"2026-11-10T21:32:38Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-843"],"updated_at":"2026-11-10T21:57:49.373692Z"}],"nvd":[{"id":"CVE-2026-109499","description":"Access of resource using incompatible type ('type confusion') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.","status":"published","published":"2026-11-10T19:18:18.987Z","modified":"2026-11-10T21:18:11.53Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-843"],"updated_at":"2026-11-11T00:21:54.23974Z"}]}}