Vulnerability-Lookup

WID-SEC-W-2026-2777

Vulnerability from csaf_certbund - Published: 2026-08-11 22:00 - Updated: 2026-08-11 22:00

Summary

Insyde UEFI Firmware (InsydeH2O): Schwachstelle ermöglicht Codeausführung

Severity

Hoch

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung: InsydeH2O UEFI BIOS ist eine proprietäre, lizenzierte UEFI-BIOS-Firmware, die Intel und AMD basierte Computer unterstützt.

Angriff: Ein lokaler Angreifer kann eine Schwachstelle in Insyde UEFI Firmware ausnutzen, um beliebigen Programmcode auszuführen.

Betroffene Betriebssysteme: - BIOS/Firmware

CVE-2026-6484

Affected products

Known affected 4 products

Product	Identifier	Version
Insyde UEFI Firmware Intel Mobile Platforms Insyde / UEFI Firmware	`cpe:/h:insyde:uefi:intel_mobile_platforms`	Intel Mobile Platforms
Insyde UEFI Firmware Intel Server/Embedded Patforms Insyde / UEFI Firmware	`cpe:/h:insyde:uefi:intel_serverembedded_patforms`	Intel Server/Embedded Patforms
Insyde UEFI Firmware InsydeH2O Insyde / UEFI Firmware	`cpe:/h:insyde:uefi:insydeh2o`	InsydeH2O
Lenovo Computer Lenovo	`cpe:/h:lenovo:computer:-`	—

References

4 references

URL	Category
https://wid.cert-bund.de/.well-known/csaf/white/2…	self
https://wid.cert-bund.de/portal/wid/securityadvis…	self
https://www.insyde.com/security-pledge/sa-2026003/	external
https://support.lenovo.com/us/en/product_security…	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "InsydeH2O UEFI BIOS ist eine propriet\u00e4re, lizenzierte UEFI-BIOS-Firmware, die Intel und AMD basierte Computer unterst\u00fctzt.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle in Insyde UEFI Firmware ausnutzen, um beliebigen Programmcode auszuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- BIOS/Firmware",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-2777 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2777.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-2777 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2777"
      },
      {
        "category": "external",
        "summary": "Insyde Security Advisory vom 2026-08-11",
        "url": "https://www.insyde.com/security-pledge/sa-2026003/"
      },
      {
        "category": "external",
        "summary": "Lenovo Security Advisory LEN-222658 vom 2026-08-12",
        "url": "https://support.lenovo.com/us/en/product_security/LEN-222658"
      }
    ],
    "source_lang": "en-US",
    "title": "Insyde UEFI Firmware (InsydeH2O): Schwachstelle erm\u00f6glicht Codeausf\u00fchrung",
    "tracking": {
      "current_release_date": "2026-08-11T22:00:00.000+00:00",
      "generator": {
        "date": "2026-08-12T10:56:09.805+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-2777",
      "initial_release_date": "2026-08-11T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-08-11T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "Intel Mobile Platforms",
                "product": {
                  "name": "Insyde UEFI Firmware Intel Mobile Platforms",
                  "product_id": "T057989",
                  "product_identification_helper": {
                    "cpe": "cpe:/h:insyde:uefi:intel_mobile_platforms"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "Intel Server/Embedded Patforms",
                "product": {
                  "name": "Insyde UEFI Firmware Intel Server/Embedded Patforms",
                  "product_id": "T057991",
                  "product_identification_helper": {
                    "cpe": "cpe:/h:insyde:uefi:intel_serverembedded_patforms"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "InsydeH2O",
                "product": {
                  "name": "Insyde UEFI Firmware InsydeH2O",
                  "product_id": "T057992",
                  "product_identification_helper": {
                    "cpe": "cpe:/h:insyde:uefi:insydeh2o"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "UEFI Firmware"
          }
        ],
        "category": "vendor",
        "name": "Insyde"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Lenovo Computer",
            "product": {
              "name": "Lenovo Computer",
              "product_id": "T048897",
              "product_identification_helper": {
                "cpe": "cpe:/h:lenovo:computer:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Lenovo"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-6484",
      "product_status": {
        "known_affected": [
          "T057989",
          "T057991",
          "T057992",
          "T048897"
        ]
      },
      "release_date": "2026-08-11T22:00:00.000+00:00",
      "title": "CVE-2026-6484"
    }
  ]
}

CVE-2026-6484 (GCVE-0-2026-6484)

Vulnerability from cvelistv5 – Published: 2026-08-12 00:20 – Updated: 2026-08-12 12:39

Title

Lack of verified boot to certain FV may cause arbitrary code execution

Summary

In an UEFI, Lack of verified boot to certain FV may cause arbitrary code execution.

Severity

8.2 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-12 12:39 UTC

CWE

CWE-1277 - Insufficient Verification of Data Authenticity in Firmware

Assigner

Insyde mitre root Scorecard

References

1 reference

URL	Tags
https://www.insyde.com/security-pledge/sa-2026003/

Impacted products

1 product

Vendor	Product	Version
Insyde Software	InsydeH2O	Unknown: See in the Solution

Date Public

2026-08-12 00:04

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

To clipboard

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Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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WID-SEC-W-2026-2777

CVE-2026-6484 (GCVE-0-2026-6484)

Tags

Sightings

Nomenclature

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