{"id":"CVE-2023-39281","aliases":["EUVD-2023-43013","GHSA-grf5-hh55-whxh"],"status":"published","title":"A stack buffer overflow vulnerability discovered in AsfSecureBootDxe in Insyde InsydeH2O with...","description":"A stack buffer overflow vulnerability discovered in AsfSecureBootDxe in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to run arbitrary code execution during the DXE phase.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00505,"percentile":0.43459,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121","CWE-787"],"published":"2023-11-01T00:00:00Z","modified":"2026-06-17T06:11:56Z","products":[{"vendor":"insyde","product":"insydeh20"},{"vendor":"insyde","product":"insydeh2o"}],"references":[{"url":"https://www.insyde.com/security-pledge","tags":["x_transferred","Vendor Advisory"]},{"url":"https://www.insyde.com/security-pledge/SA-2023054","tags":["x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-39281"},{"url":"https://github.com/advisories/GHSA-grf5-hh55-whxh"}],"sources":{"cve":[{"id":"CVE-2023-39281","description":"A stack buffer overflow vulnerability discovered in AsfSecureBootDxe in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to run arbitrary code execution during the DXE phase.","status":"published","published":"2023-11-01T00:00:00Z","modified":"2024-09-06T19:14:08.598Z","cvss":[{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:35:33.138994Z"}],"euvd":[{"id":"EUVD-2023-43013","description":"A stack buffer overflow vulnerability discovered in AsfSecureBootDxe in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to run arbitrary code execution during the DXE phase.","status":"published","published":"2023-11-01T00:00:00Z","modified":"2024-09-06T19:14:08Z","cvss":[{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"updated_at":"2026-11-03T00:56:01.652315Z"}],"ghsa":[{"id":"GHSA-grf5-hh55-whxh","title":"A stack buffer overflow vulnerability discovered in AsfSecureBootDxe in Insyde InsydeH2O with...","description":"A stack buffer overflow vulnerability discovered in AsfSecureBootDxe in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to run arbitrary code execution during the DXE phase.","status":"published","published":"2023-11-02T00:30:31Z","modified":"2024-09-06T21:33:29Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-121","CWE-787"],"updated_at":"2026-11-02T14:58:11.86243Z"}],"nvd":[{"id":"CVE-2023-39281","description":"A stack buffer overflow vulnerability discovered in AsfSecureBootDxe in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to run arbitrary code execution during the DXE phase.","status":"published","published":"2023-11-01T22:15:08.547Z","modified":"2026-06-17T06:11:56.487Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-787","CWE-121"],"updated_at":"2026-11-02T14:08:41.047232Z"}]}}