{"id":"CVE-2023-22613","aliases":["EUVD-2023-26749","GHSA-g2w9-pvr5-q6m3"],"status":"published","title":"An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. It is...","description":"An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. It is possible to write to an attacker-controlled address. An attacker could invoke an SMI handler with a malformed pointer in RCX that overlaps SMRAM, resulting in SMM memory corruption.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00212,"percentile":0.11639,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2023-04-11T00:00:00Z","modified":"2026-06-17T05:35:43Z","products":[{"vendor":"insyde","product":"insydeh2o"}],"references":[{"url":"https://www.insyde.com/security-pledge","tags":["x_transferred","Vendor Advisory"]},{"url":"https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/","tags":["x_transferred","Not Applicable"]},{"url":"https://www.insyde.com/security-pledge/SA-2023023","tags":["x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-22613"},{"url":"https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode"},{"url":"https://github.com/advisories/GHSA-g2w9-pvr5-q6m3"}],"sources":{"cve":[{"id":"CVE-2023-22613","description":"An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. It is possible to write to an attacker-controlled address. An attacker could invoke an SMI handler with a malformed pointer in RCX that overlaps SMRAM, resulting in SMM memory corruption.","status":"published","published":"2023-04-11T00:00:00Z","modified":"2025-02-11T20:07:03.031Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:35:15.779187Z"}],"euvd":[{"id":"EUVD-2023-26749","description":"An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. It is possible to write to an attacker-controlled address. An attacker could invoke an SMI handler with a malformed pointer in RCX that overlaps SMRAM, resulting in SMM memory corruption.","status":"published","published":"2023-04-11T00:00:00Z","modified":"2025-02-11T20:07:03Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:03:58.784175Z"}],"ghsa":[{"id":"GHSA-g2w9-pvr5-q6m3","title":"An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. It is...","description":"An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. It is possible to write to an attacker-controlled address. An attacker could invoke an SMI handler with a malformed pointer in RCX that overlaps SMRAM, resulting in SMM memory corruption.","status":"published","published":"2023-04-12T00:30:19Z","modified":"2024-04-04T03:25:06Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:56:14.876837Z"}],"nvd":[{"id":"CVE-2023-22613","description":"An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. It is possible to write to an attacker-controlled address. An attacker could invoke an SMI handler with a malformed pointer in RCX that overlaps SMRAM, resulting in SMM memory corruption.","status":"published","published":"2023-04-11T22:15:07.66Z","modified":"2026-06-17T05:35:43.877Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:55.652109Z"}]}}