{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-7026", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "state": "PUBLISHED", "assignerShortName": "certcc", "dateReserved": "2025-07-02T15:42:52.209Z", "datePublished": "2025-07-11T15:27:34.960Z", "dateUpdated": "2026-02-26T17:50:43.390Z" }, "containers": { "cna": { "title": "SMM Arbitrary Write via Unchecked RBX Pointer in CommandRcx0", "descriptions": [ { "lang": "en", "value": "A vulnerability in the Software SMI handler (SwSmiInputValue 0xB2) allows a local attacker to control the RBX register, which is used as an unchecked pointer in the CommandRcx0 function. If the contents at RBX match certain expected values (e.g., '$DB$' or '2DB$'), the function performs arbitrary writes to System Management RAM (SMRAM), leading to potential privilege escalation to System Management Mode (SMM) and persistent firmware compromise." } ], "source": { "discovery": "EXTERNAL" }, "affected": [ { "vendor": "GIGABYTE", "product": "UEFI-GenericComponentSmmEntry", "versions": [ { "status": "affected", "version": "1.0.0" } ] } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "CWE-822 Untrusted Pointer Dereference" } ] } ], "references": [ { "url": "https://www.gigabyte.com/Support/Security" }, { "url": "https://www.binarly.io/advisories/brly-dva-2025-008" }, { "url": "https://kb.cert.org/vuls/id/746790" } ], "x_generator": { "engine": "VINCE 3.0.21", "env": "prod", "origin": "https://cveawg.mitre.org/api/cve/CVE-2025-7026" }, "providerMetadata": { "orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2025-07-11T15:27:34.960Z" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "CHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2025-7026", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2025-07-12T03:55:16.064357Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-26T17:50:43.390Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://www.kb.cert.org/vuls/id/746790" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T20:07:19.993Z" } } ] } }