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01 Record

CVE-2022-4574

An SMI handler input validation vulnerability in the BIOS of some ThinkPad models could allow an attacker with local access and elevated privileges to execute arbitrary code.

MediumPUBLISHEDCNA: lenovo
CNA base score6.7 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

02 Description

An SMI handler input validation vulnerability in the BIOS of some ThinkPad models could allow an attacker with local access and elevated privileges to execute arbitrary code.

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.19% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 8.2% of scored records. A rank, not a probability.
NVD base score
6.7 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-10-30 14:36Z2 YR AGO
Last updated
2024-09-09 16:51Z2 YR AGO
Reserved
2022-12-16
Assigning CNA
lenovo
Record state
PUBLISHED
Severity
Medium (CVSS 6.7)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-20Improper Input ValidationClass
Data version
5.1
Document digest
de9573c99bfd1e6e79780331bed85e63ed80b63f9cbdfc2e5d4847f2433e6805

05 Affected products

VendorProductVersionsPlatforms
LenovoThinkPad BIOSvarious—
lenovothinkpadvarious—

06 References

07 Remediation

Update system firmware to the version (or newer) indicated for your model in the Product Impact section of LEN-106014.