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01 Record

CVE-2023-25494

A potential vulnerability were reported in the BIOS of some Desktop, Smart Edge, and ThinkStation products that could allow a local attacker with elevated privileges to write to NVRAM variables.

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

A potential vulnerability were reported in the BIOS of some Desktop, Smart Edge, and ThinkStation products that could allow a local attacker with elevated privileges to write to NVRAM variables.

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 ImpactpartialSuccessful exploitation gives limited 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
0.17% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 7.0% 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
Deferred. 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
2024-04-05 20:46Z2 YR AGO
Last updated
2024-08-02 11:25Z2 YR AGO
Reserved
2023-02-06
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
Data version
5.1
Document digest
0a90c4930825d480ef40e66fbfac5f85efb8623d47126f86f7090e4bd363a73e

05 Affected products

VendorProductVersionsPlatforms

06 References

07 Remediation

Update system firmware to the version (or newer) indicated for your model in the advisory: https://support.lenovo.com/us/en/product_security/LEN-141775