Non-Transparent Sharing of Microarchitectural Resources in some Intel(R) NUC BIOS firmware may allow a privileged user to potentially enabl…

published 2023-11-14 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-45111

cvss: 4.1; 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

Non-Transparent Sharing of Microarchitectural Resources in some Intel(R) NUC BIOS firmware may allow a privileged user to potentially enable information disclosure via local access.

Patch / fix

links 1

intel.com/content/www/us/en/security-center/advisory/intel-sa-01001.… advisory

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-08-30)

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	4.1	CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
NVD	3.1	4.4	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Affected products

n/a Intel(R) NUC BIOS firmware

Classification

Weakness

CWE-1303 Non-Transparent Sharing of Microarchitectural Resources

References

intel.com /content/www/us/en/security-center/advisory/intel-sa-01001.html
patch, vendor-advisory

Sources

CVE List CVE-2023-40540
NVD CVE-2023-40540

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Summary