{"id":"CVE-2026-63520","aliases":["EUVD-2026-56298","GHSA-cj4w-v2c3-7qjr"],"status":"published","title":"Microsoft SharePoint Server Remote Code Execution Vulnerability","description":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00956,"percentile":0.61712,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-20"],"published":"2026-08-11T17:03:31Z","modified":"2026-10-30T17:19:16Z","exploits":[{"source":"pocgithub","id":"hypnguyen1209/CVE-2026-63520","title":"hypnguyen1209/CVE-2026-63520","date":"2026-08-26","url":"https://github.com/hypnguyen1209/CVE-2026-63520"}],"products":[{"vendor":"microsoft","product":"microsoft sharepoint enterprise server 2016"},{"vendor":"microsoft","product":"microsoft sharepoint server 2019"},{"vendor":"microsoft","product":"microsoft sharepoint server subscription edition"},{"vendor":"microsoft","product":"sharepoint_server"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-63520","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63520"},{"url":"https://github.com/advisories/GHSA-cj4w-v2c3-7qjr"}],"sources":{"cve":[{"id":"CVE-2026-63520","title":"Microsoft SharePoint Server Remote Code Execution Vulnerability","description":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-08-11T17:03:31.37Z","modified":"2026-10-30T17:19:16.886Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:19:55.914391Z"}],"euvd":[{"id":"EUVD-2026-56298","description":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-08-11T17:03:31Z","modified":"2026-10-30T17:19:16Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T16:59:05.130363Z"}],"ghsa":[{"id":"GHSA-cj4w-v2c3-7qjr","title":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to...","description":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-08-11T18:31:31Z","modified":"2026-08-11T18:31:39Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:10:19.387522Z"}],"nvd":[{"id":"CVE-2026-63520","description":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-08-11T17:18:47.377Z","modified":"2026-08-13T13:38:30.453Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:12:36.499002Z"}]}}