Improper input validation in some Intel(R) BIOS Guard firmware may allow a privileged user to potentially enable escalation of privilege vi…

published 2024-05-16 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-32098

cvss: 7.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 10%
public exploits: 0; none known

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

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-08-21)

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.2	CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N

Affected products

n/a Intel(R) BIOS Guard firmware
intel comet_lake

Classification

Weakness

CWE-20 Improper Input Validation

References

intel.com /content/www/us/en/security-center/advisory/intel-sa-00814.html

Sources

CVE List CVE-2023-28402
NVD CVE-2023-28402

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary