CVE-2023-34440 | Vulnetix

CVE-2023-34440 PUBLISHED CVSS 8.7 HIGH

Reported by intel · Published February 12, 2025

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.

Risk scores

CVSS 4.0

8.7

CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Affected products

Vendor	Product	Versions
n/a	Intel(R) Processors	See references
n/a	Intel(R) Processors	*

Timeline

Feb 11, 2025 CVE Published
Feb 12, 2025 PoC Published (4 in total, the first dated here)
Feb 13, 2025 EPSS Score (30 in total, the first dated here)
Aug 9, 2025 CVE Updated
Jun 2, 2026 Security Advisory (4 in total, the first dated here)
Aug 8, 2026 Coalition ESS Score
Aug 11, 2026 Distribution Patch (3 in total, the first dated here)

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vulnetix vdb vuln CVE-2023-34440
vulnetix vdb fixes CVE-2023-34440

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  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2023-34440/fixes/registry"

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References

Look up in the Resolve Platform →