CVE-2021-3452

Estado: ModificadaMedia (6.7)—
A potential vulnerability in the system shutdown SMI callback function in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.
CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 6.7
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.27%
Percentil entre todas las CVEs puntuadas: 18
Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)

Lenovo — Bios
CWE

CWE-20
NVD-CWE-noinfo
Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-3452",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@lenovo.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.7,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 0.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.7,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 0.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@lenovo.com",
      "affectedData": [
        {
          "vendor": "Lenovo",
          "product": "ThinkPad BIOS",
          "versions": [
            {
              "status": "affected",
              "version": "various"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-07-16T21:15:10.607",
  "references": [
    {
      "url": "https://support.lenovo.com/us/en/product_security/LEN-65529",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@lenovo.com"
    },
    {
      "url": "https://support.lenovo.com/us/en/product_security/LEN-65529",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@lenovo.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A potential vulnerability in the system shutdown SMI callback function in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code."
    },
    {
      "lang": "es",
      "value": "Una potencial vulnerabilidad en la función shutdown SMI callback del sistema en algunos modelos ThinkPad, puede permitir a un atacante con acceso local y privilegios elevados ejecutar código arbitrario"
    }
  ],
  "lastModified": "2026-06-17T04:05:07.913",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:lenovo:bios:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "61D66F0D-6C60-4CF6-A509-C6FAC2E22F95"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_11e_3rd_gen:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "C6C40A89-6683-4146-A5C2-46E253E33664"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_11e_4th_gen:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "3364758F-CBFC-47DD-98E2-12770869EE0D"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_11e_5th_gen:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "8D46E4CE-05BB-498B-98C1-C641430AE0FB"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_11e_yoga_gen_6:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "4AA392C0-4D5A-4440-8910-C248F17077CC"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_13_gen_2:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "59C2F35D-79A1-4671-BA7E-4AAF2BA13744"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_e14_gen_2:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "CC416997-C5A5-4AAA-B998-7F27B2AB2D0C"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_e15_gen_2:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "94DAF479-1162-440D-95DC-A4F94C143EB1"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_l13:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "99429424-2602-458B-BB57-C2E161005587"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_l13_gen_2:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "3E560943-6A00-4423-91F3-FBBBBB978F6B"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_l13_yoga:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "1295E4F8-431A-43ED-8104-DBBD0CDB1978"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_l13_yogo_gen_2:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "14789824-42A5-4944-B2BE-663456450249"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_l14:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "724B10DF-7AA6-4541-A1F4-388E7BEB2319"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_l14_gen_2:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "5CE86BB2-232D-4DD9-9630-EA6517C64EB1"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_l15:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "65290880-A7DF-4350-8BBB-8175811EC15E"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_l15_gen_2:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "77DDB8D3-F2BD-42AB-B927-D38FB54EE902"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_l380:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "D0FFC7C4-2CAF-440A-8ED8-F25EA19F86C1"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_l380_yoga:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "2187E37E-E3D6-467A-934C-D5613FBF8641"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_l390:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "072FAC2E-2349-465C-96C0-C24E3891A7B3"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_l390_yoga:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "17DD928B-F0BF-44F1-9EA4-DC82233A2E69"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_t460:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "D86FD3AD-D731-4C30-8A72-EC1A45B203F0"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_x12_detachable_gen_1:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "A2439F63-731F-47A4-B625-B3520ECDA0B1"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_x260:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "08393A13-D68E-4042-B223-EF80E581EEBC"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_x380_yoga:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "A5E1704F-6BB6-4B7C-ADE6-720533FB46E4"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_yoga_11e_3rd_gen:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "EA8D4BE6-6E87-4892-9E16-2799D0E0CA21"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_yoga_11e_4th_gen:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "24977327-E104-4F51-8CF1-6EF1FEAED9F8"
            },
            {
              "criteria": "cpe:2.3:h:lenovo:thinkpad_yoga_370:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "30B0E5C1-5A7B-4310-A4D3-A12E1F059568"
            },
            {
              "criteria": "cpe:2.3:o:lenovo:bios:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "61D66F0D-6C60-4CF6-A509-C6FAC2E22F95"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "psirt@lenovo.com"
}