Vulnerability-Lookup

GHSA-5M9V-M547-62QF

Vulnerability from github – Published: 2026-01-15 00:31 – Updated: 2026-01-15 00:31

Details

A potential vulnerability was reported in the BIOS of L13 Gen 6, L13 Gen 6 2-in-1, L14 Gen 6, and L16 Gen 2 ThinkPads which could result in Secure Boot being disabled even when configured as “On” in the BIOS setup menu. This issue only affects systems where Secure Boot is set to User Mode.

Severity ?

6.5 (Medium)


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

7.0 (High)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-0421"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-252"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-14T23:15:56Z",
    "severity": "HIGH"
  },
  "details": "A potential vulnerability was reported in the BIOS of L13 Gen 6, L13 Gen 6 2-in-1, L14 Gen 6, and L16 Gen 2 ThinkPads which could result in Secure Boot being disabled even when configured as \u201cOn\u201d in the BIOS setup menu. This issue only affects systems where Secure Boot is set to User Mode.",
  "id": "GHSA-5m9v-m547-62qf",
  "modified": "2026-01-15T00:31:38Z",
  "published": "2026-01-15T00:31:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0421"
    },
    {
      "type": "WEB",
      "url": "https://support.lenovo.com/us/en/product_security/LEN-210688"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-0421 (GCVE-0-2026-0421)

Vulnerability from cvelistv5 – Published: 2026-01-14 22:18 – Updated: 2026-01-16 04:55

Summary

Severity ?

7 (High)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

6.5 (Medium)


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

CWE

CWE-252 - Unchecked Return Value

Assigner

lenovo

References

URL

Tags

https://support.lenovo.com/us/en/product_security…

Impacted products

Vendor

Product

Version

Lenovo

ThinkPad L13 Gen 6 BIOS

Affected: 0 , < 1.10 (custom)

Lenovo	ThinkPad L13 Gen 6 2 in 1 BIOS	Affected: 0 , < 1.10 (custom)
Lenovo	ThinkPad L14 Gen 6 BIOS	Affected: 0 , < 1.06 (custom)
Lenovo	ThinkPad L16 Gen 2 BIOS	Affected: 0 , < 1.06 (custom)

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JSON

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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-5M9V-M547-62QF

CVE-2026-0421 (GCVE-0-2026-0421)

Tags

Sightings

Nomenclature