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LenovoCVELIST:CVE-2021-3843

HistoryNov 12, 2021 - 10:05 p.m.

CVE-2021-3843

2021-11-1222:05:56

CWE-20

lenovo

www.cve.org

vulnerability

thinkpad

eeprom

local access

elevated privileges

arbitrary code

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

6.9

Confidence

High

EPSS

Percentile

5.1%

JSON

A potential vulnerability in the SMI function to access EEPROM in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.

CNA Affected

[
  {
    "product": "ThinkPad BIOS",
    "vendor": "Lenovo",
    "versions": [
      {
        "status": "affected",
        "version": "various"
      }
    ]
  }
]

References

support.lenovo.com/us/en/product_security/LEN-72619

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

6.9

Confidence

High

EPSS

Percentile

5.1%

JSON

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