CVE-2021-38578
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.4epss 1.0%
exploitation probability
1.0%top 40% of all CVEs
observed exploitation
nono source reports it
Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L
Affected products
TianoCore · EDK II