{"id":"CVE-2026-40411","aliases":["EUVD-2026-31510","GHSA-g63w-3vwq-rqw8"],"status":"published","title":"Azure Virtual Network Gateway Remote Code Execution Vulnerability","description":"Improper input validation in Azure Virtual Network Gateway allows an authorized attacker to execute code over a network.","severity":{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00525,"percentile":0.44974,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2026-05-22T22:03:06Z","modified":"2026-08-10T15:12:28Z","products":[{"vendor":"microsoft","product":"azure virtual network gateway"},{"vendor":"microsoft","product":"azure_virtual_network_gateway"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40411","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40411"},{"url":"https://github.com/advisories/GHSA-g63w-3vwq-rqw8"}],"sources":{"cve":[{"id":"CVE-2026-40411","title":"Azure Virtual Network Gateway Remote Code Execution Vulnerability","description":"Improper input validation in Azure Virtual Network Gateway allows an authorized attacker to execute code over a network.","status":"published","published":"2026-05-22T22:03:06.684Z","modified":"2026-08-10T15:12:28.666Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T13:43:00.288193Z"}],"euvd":[{"id":"EUVD-2026-31510","description":"Improper input validation in Azure Virtual Network Gateway allows an authorized attacker to execute code over a network.","status":"published","published":"2026-05-22T22:03:06Z","modified":"2026-08-10T15:12:28Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-02T18:02:03.332437Z"}],"ghsa":[{"id":"GHSA-g63w-3vwq-rqw8","title":"Improper input validation in Azure Virtual Network Gateway allows an authorized attacker to...","description":"Improper input validation in Azure Virtual Network Gateway allows an authorized attacker to execute code over a network.","status":"published","published":"2026-05-26T13:30:22Z","modified":"2026-05-26T13:30:22Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:08:16.245994Z"}],"nvd":[{"id":"CVE-2026-40411","description":"Improper input validation in Azure Virtual Network Gateway allows an authorized attacker to execute code over a network.","status":"published","published":"2026-05-22T23:16:51.22Z","modified":"2026-07-23T11:10:00.12Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"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":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:12:20.131508Z"}]}}