{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-94146", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-09-20T20:31:10.779Z", "datePublished": "2026-09-21T07:00:09.909Z", "dateUpdated": "2026-09-22T15:41:23.071Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-09-21T07:00:09.909Z" }, "title": "BioStar BIOS Update Utility IOCTL BSMEM64_W10.sys sub_110BC write-what-where", "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-123", "lang": "en", "description": "Write-what-where Condition" } ] }, { "descriptions": [ { "type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "Memory Corruption" } ] } ], "affected": [ { "vendor": "BioStar", "product": "BIOS Update Utility", "versions": [ { "version": "1.9.7.3", "status": "affected" } ], "cpes": [ "cpe:2.3:o:biostar:bios_update_utility:*:*:*:*:*:*:*:*" ], "modules": [ "IOCTL Handler" ] } ], "descriptions": [ { "lang": "en", "value": "A vulnerability was found in BioStar BIOS Update Utility 1.9.7.3. This issue affects the function sub_110BC of the file BSMEM64_W10.sys of the component IOCTL Handler. The manipulation of the argument PhysicalAddress/Size results in write-what-where condition. Attacking locally is a requirement. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way." } ], "metrics": [ { "cvssV4_0": { "version": "4.0", "baseScore": 9.3, "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P", "baseSeverity": "CRITICAL" } }, { "cvssV3_1": { "version": "3.1", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R", "baseSeverity": "HIGH" } }, { "cvssV3_0": { "version": "3.0", "baseScore": 8.8, "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R", "baseSeverity": "HIGH" } }, { "cvssV2_0": { "version": "2.0", "baseScore": 6.8, "vectorString": "AV:L/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR" } } ], "timeline": [ { "time": "2026-09-20T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed" }, { "time": "2026-09-20T02:00:00.000Z", "lang": "en", "value": "VulDB entry created" }, { "time": "2026-09-20T22:36:15.000Z", "lang": "en", "value": "VulDB entry last update" } ], "credits": [ { "lang": "en", "value": "Bigcat (VulDB User)", "type": "reporter" }, { "lang": "en", "value": "VulDB CNA Team", "type": "coordinator" } ], "references": [ { "url": "https://vuldb.com/vuln/408061", "name": "VDB-408061 | BioStar BIOS Update Utility IOCTL BSMEM64_W10.sys sub_110BC write-what-where", "tags": [ "vdb-entry", "technical-description" ] }, { "url": "https://vuldb.com/vuln/408061/cti", "name": "VDB-408061 | CTI Indicators (IOB, IOC, IOA)", "tags": [ "signature", "permissions-required" ] }, { "url": "https://vuldb.com/cve/CVE-2026-94146", "name": "CVE-2026-94146 | CVE Analysis and Report", "tags": [ "third-party-advisory" ] }, { "url": "https://vuldb.com/submit/894066", "name": "Submit #894066 | BIOSTAR Group BIOS Update Utility 1.9.7.3 Arbitrary Kernel Memory Read/Write", "tags": [ "third-party-advisory" ] } ], "x_generator": [ "VulDB PVTS v202609" ] }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-22T14:53:51.834725Z", "id": "CVE-2026-94146", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-22T15:41:23.071Z" } } ] } }