CVE-2022-40134

An information leak vulnerability in the SMI Set BIOS Password SMI Handler in some Lenovo models...

4.4 Medium

An information leak vulnerability in the SMI Set BIOS Password SMI Handler in some Lenovo models may allow an attacker with local access and elevated privileges to read SMM memory.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: High
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

0.20%Down 0.7 points since Jan 31, 2023

What each source reports

CVE List Score used 4.4

An information leak vulnerability in the SMI Set BIOS Password SMI Handler in some Lenovo models may allow an attacker with local access and elevated privileges to read SMM memory.

Record: CVE-2022-40134
CVSS 3.1: 4.4 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-125
Updated: 2026-11-02

EUVDEUVD-2022-43452 4.4

An information leak vulnerability in the SMI Set BIOS Password SMI Handler in some Lenovo models may allow an attacker with local access and elevated privileges to read SMM memory.

Record: EUVD-2022-43452
CVSS 3.1: 4.4 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-p7vc-qcj9-2mj9 4.4

An information leak vulnerability in the SMI Set BIOS Password SMI Handler in some Lenovo models...

An information leak vulnerability in the SMI Set BIOS Password SMI Handler in some Lenovo models may allow an attacker with local access and elevated privileges to read SMM memory.

Record: GHSA-p7vc-qcj9-2mj9
CVSS 3.1: 4.4 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-125
Updated: 2026-11-02

NVD 4.4

An information leak vulnerability in the SMI Set BIOS Password SMI Handler in some Lenovo models may allow an attacker with local access and elevated privileges to read SMM memory.

Record: CVE-2022-40134
CVSS 3.1: 4.4 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-125
Updated: 2026-11-02

Affected products

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History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-40134 is a medium vulnerability (CVSS 4.4) in Lenovo Bios, published January 30, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.20%, the 9th percentile. No source names a fixed version.

Attack profile

How easy it is to exploit

What an attacker can affect

Exploit likelihood

What each source reports

Affected products

History

In short

References