github - ghsa-35m5-23fr-x9rq

GHSA-35M5-23FR-X9RQ

Vulnerability from github – Published: 2025-07-11 18:30 – Updated: 2025-11-03 21:34

Details

A vulnerability in the Software SMI handler (SwSmiInputValue 0xB2) allows a local attacker to control the RBX register, which is used to derive pointers (OcHeader, OcData) passed into power and thermal configuration logic. These buffers are not validated before performing multiple structured memory writes based on OcSetup NVRAM values, enabling arbitrary SMRAM corruption and potential SMM privilege escalation.

Severity ?

8.2 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2025-7029"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-11T16:15:27Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability in the Software SMI handler (SwSmiInputValue 0xB2) allows a local attacker to control the RBX register, which is used to derive pointers (OcHeader, OcData) passed into power and thermal configuration logic. These buffers are not validated before performing multiple structured memory writes based on OcSetup NVRAM values, enabling arbitrary SMRAM corruption and potential SMM privilege escalation.",
  "id": "GHSA-35m5-23fr-x9rq",
  "modified": "2025-11-03T21:34:06Z",
  "published": "2025-07-11T18:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-7029"
    },
    {
      "type": "WEB",
      "url": "https://kb.cert.org/vuls/id/746790"
    },
    {
      "type": "WEB",
      "url": "https://www.binarly.io/advisories/brly-dva-2025-011"
    },
    {
      "type": "WEB",
      "url": "https://www.gigabyte.com/Support/Security"
    },
    {
      "type": "WEB",
      "url": "https://www.kb.cert.org/vuls/id/746790"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-7029 (GCVE-0-2025-7029)

Vulnerability from cvelistv5 – Published: 2025-07-11 15:22 – Updated: 2025-11-03 20:07

Summary

Severity ?

8.2 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CWE

CWE-822 uncontrolled pointer deference

Assigner

certcc

References

URL

Tags

	https://www.gigabyte.com/Support/Security
	https://www.binarly.io/advisories/brly-dva-2025-011
	https://kb.cert.org/vuls/id/746790

Impacted products

	Vendor	Product	Version
	GIGABYTE	UEFI-OverClockSmiHandler	Affected: 1.0.0

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 8.2,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "HIGH",
              "scope": "CHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-7029",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-07-12T03:55:17.650535Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-07-15T14:43:47.539Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T20:07:24.142Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://www.kb.cert.org/vuls/id/746790"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "UEFI-OverClockSmiHandler",
          "vendor": "GIGABYTE",
          "versions": [
            {
              "status": "affected",
              "version": "1.0.0"
            }
          ]
        }
      ],
      "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 to derive pointers (OcHeader, OcData) passed into power and thermal configuration logic. These buffers are not validated before performing multiple structured memory writes based on OcSetup NVRAM values, enabling arbitrary SMRAM corruption and potential SMM privilege escalation."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-822 uncontrolled pointer deference",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-11T15:22:12.577Z",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "url": "https://www.gigabyte.com/Support/Security"
        },
        {
          "url": "https://www.binarly.io/advisories/brly-dva-2025-011"
        },
        {
          "url": "https://kb.cert.org/vuls/id/746790"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "SMM Arbitrary Write via Unchecked OcHeader Buffer in Platform Configuration Handler",
      "x_generator": {
        "engine": "VINCE 3.0.21",
        "env": "prod",
        "origin": "https://cveawg.mitre.org/api/cve/CVE-2025-7029"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2025-7029",
    "datePublished": "2025-07-11T15:22:12.577Z",
    "dateReserved": "2025-07-02T15:43:34.209Z",
    "dateUpdated": "2025-11-03T20:07:24.142Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-35M5-23FR-X9RQ

CVE-2025-7029 (GCVE-0-2025-7029)

Tags

Sightings

Nomenclature