{"id":"CVE-2022-32475","aliases":["EUVD-2022-35547","GHSA-ffch-mwmj-f7w4"],"status":"published","title":"An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the...","description":"An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the VariableRuntimeDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This issue was fixed in the kernel, which also protected chipset and OEM chipset code.","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00132,"percentile":0.02809,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-367"],"published":"2023-02-15T00:00:00Z","modified":"2026-06-17T04:47:19Z","products":[{"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-2023007","tags":["x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-32475"},{"url":"https://github.com/advisories/GHSA-ffch-mwmj-f7w4"}],"sources":{"cve":[{"id":"CVE-2022-32475","description":"An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the VariableRuntimeDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This issue was fixed in the kernel, which also protected chipset and OEM chipset code.","status":"published","published":"2023-02-15T00:00:00Z","modified":"2025-05-05T16:16:08.295Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:34:36.917505Z"}],"euvd":[{"id":"EUVD-2022-35547","description":"An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the VariableRuntimeDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This issue was fixed in the kernel, which also protected chipset and OEM chipset code.","status":"published","published":"2023-02-15T00:00:00Z","modified":"2025-05-05T16:16:08Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T20:32:56.549702Z"}],"ghsa":[{"id":"GHSA-ffch-mwmj-f7w4","title":"An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the...","description":"An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the VariableRuntimeDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This issue was fixed in the kernel, which also protected chipset and OEM chipset code.","status":"published","published":"2023-02-15T15:30:41Z","modified":"2023-02-25T03:30:16Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:54:14.106206Z"}],"nvd":[{"id":"CVE-2022-32475","description":"An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the VariableRuntimeDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This issue was fixed in the kernel, which also protected chipset and OEM chipset code.","status":"published","published":"2023-02-15T14:15:11.95Z","modified":"2026-06-17T04:47:19.923Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:07:36.026349Z"}]}}