github - ghsa-v9r5-7mg9-fwrr

GHSA-V9R5-7MG9-FWRR

Vulnerability from github – Published: 2025-06-11 03:31 – Updated: 2025-06-11 03:31

Details

Running the provided utility changes the certificate on any Insyde BIOS and then the attached .efi file can be launched.

Severity ?

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-4275"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-11T01:15:20Z",
    "severity": "HIGH"
  },
  "details": "Running the provided utility changes the certificate on any Insyde BIOS and then the attached .efi file can be launched.",
  "id": "GHSA-v9r5-7mg9-fwrr",
  "modified": "2025-06-11T03:31:07Z",
  "published": "2025-06-11T03:31:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-4275"
    },
    {
      "type": "WEB",
      "url": "https://www.insyde.com/security-pledge/sa-2025002"
    },
    {
      "type": "WEB",
      "url": "https://www.kb.cert.org/vuls/id/211341"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-4275 (GCVE-0-2025-4275)

Vulnerability from cvelistv5 – Published: 2025-06-11 00:25 – Updated: 2025-08-14 05:58

Summary

A vulnerability in the digital signature verification process does not properly validate variable attributes which allows an attacker to bypass signature verification by creating a non-authenticated NVRAM variable. An attacker may to execute arbitrary signed UEFI code and bypass Secure Boot.

Severity ?

7.8 (High)


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

CWE

cwe-284: Improper Access Control

Assigner

Insyde

References

URL

Tags

https://www.insyde.com/security-pledge/sa-2025002/

Impacted products

	Vendor	Product	Version
	Insyde Software	InsydeH2O	Affected: Kernel 5.2 , < 05.2A.16 (Tag) Affected: Kernel 5.3 , < 05.39.16 (Tag) Affected: Kernel 5.4 , < 05.47.16 (Tag) Affected: Kernel 5.5 , < 05.55.16 (Tag) Affected: Kernel 5.6 , < 05.62.16 (Tag) Affected: Kernel 5.7 , < 05.71.16 (Tag)

Credits

Thanks to Nikolaj Schlej, independent firmware security researcher, for reporting the vulnerability and engaging in this coordinated disclosure.

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-06-11T01:32:11.159Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://www.kb.cert.org/vuls/id/211341"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2025-4275",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-11T13:38:13.231273Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-07-30T13:30:23.397Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "defaultStatus": "unknown",
          "platforms": [
            "kernel 5.2",
            "kernel 5.3",
            "kernel 5.4",
            "kernel 5.5",
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          ],
          "product": "InsydeH2O",
          "vendor": "Insyde Software",
          "versions": [
            {
              "lessThan": "05.2A.16",
              "status": "affected",
              "version": "Kernel 5.2",
              "versionType": "Tag"
            },
            {
              "lessThan": "05.39.16",
              "status": "affected",
              "version": "Kernel 5.3",
              "versionType": "Tag"
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              "version": "Kernel 5.4",
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      ],
      "datePublic": "2025-06-10T00:18:00.000Z",
      "descriptions": [
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          "supportingMedia": [
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          "cvssV3_1": {
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      "solutions": [
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  },
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}

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-V9R5-7MG9-FWRR

CVE-2025-4275 (GCVE-0-2025-4275)

Tags

Sightings

Nomenclature