{"id":"CVE-2026-78442","aliases":["EUVD-2026-73795","GHSA-gvh2-qc62-c423"],"status":"published","title":"Windows OLE DB Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Windows OLE DB allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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":0.00819,"percentile":0.57518,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-09-08T17:18:20Z","modified":"2026-11-10T21:37:20Z","products":[{"vendor":"microsoft","product":"microsoft sql server 2017 (cu 31)"},{"vendor":"microsoft","product":"microsoft sql server 2017 (gdr)"},{"vendor":"microsoft","product":"microsoft sql server 2019 (cu 32)"},{"vendor":"microsoft","product":"microsoft sql server 2019 (gdr)"},{"vendor":"microsoft","product":"sql_server_2017"},{"vendor":"microsoft","product":"sql_server_2019"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78442","tags":["vendor-advisory","patch","Vendor Advisory","Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78442"},{"url":"https://github.com/advisories/GHSA-gvh2-qc62-c423"}],"sources":{"cve":[{"id":"CVE-2026-78442","title":"Windows OLE DB Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Windows OLE DB allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:18:20.397Z","modified":"2026-11-10T21:37:20.796Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-10T22:48:53.557052Z"}],"euvd":[{"id":"EUVD-2026-73795","description":"Heap-based buffer overflow in Windows OLE DB allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:18:20Z","modified":"2026-11-10T21:37:20Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T23:24:19.311812Z"}],"ghsa":[{"id":"GHSA-gvh2-qc62-c423","title":"Heap-based buffer overflow in Windows OLE DB allows an unauthorized attacker to execute code over...","description":"Heap-based buffer overflow in Windows OLE DB allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:33:23Z","modified":"2026-09-08T18:33:52Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:11:34.019342Z"}],"nvd":[{"id":"CVE-2026-78442","description":"Heap-based buffer overflow in Windows OLE DB allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:20:42.02Z","modified":"2026-09-23T15:36:54.89Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:12:45.264578Z"}]}}