CVE-2021-26356
high-risk
Published 2023-05-09
A TOCTOU in ASP bootloader may allow an attacker to tamper with the SPI ROM following data read to memory potentially resulting in S3 data corruption and information disclosure.
Do I need to act?
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0.18% 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
7
CVSS 7.4/10
High
NETWORK
/ HIGH complexity
Affected Products (20)
Affected Vendors
References (4)
53
/ 100
high-risk
Severity
22/34 · High
Exploitability
1/34 · Minimal
Exposure
30/34 · Critical