CVE-2023-28075

high-risk
Published 2023-08-16

Dell BIOS contain a Time-of-check Time-of-use vulnerability in BIOS. A local authenticated malicious user with physical access to the system could potentially exploit this vulnerability by using a specifically timed DMA transaction during an SMI in order to gain arbitrary code execution on the system.

Do I need to act?

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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.9/10 Medium
PHYSICAL / HIGH complexity

Affected Vendors

51
/ 100
high-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 33/34 · Critical