CVE-2023-34440 HIGH

CVE-2023-34440

Vendor N/A

Product Intel(R) Processors

Weakness CWE-20 · Input validation

Published February 12, 2025

Last update November 3, 2025

View on NVD All CVEs

CVSS base score

7.5/10

Attack vector Local

Attack complexity High

Privileges required High

User interaction None

Confidentiality High

Integrity High

CVSS vector

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

What the vulnerability does

01Description

Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

Key dates

02Disclosure timeline

February 12, 2025 CVE published

November 3, 2025 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-34440 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/20.html

Related vulnerabilities

CVE-2023-34440

01Description

02Disclosure timeline

03References

04Related CVE