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CVE-2021-38578
HIGH7.4
Description
Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.
CVE Details
CVSS v3.1 Score7.4
SeverityHIGH
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L
Attack VectorLOCAL
ComplexityHIGH
Privileges RequiredHIGH
User InteractionNONE
Published3/3/2022
Last Modified11/3/2025
Sourcenvd
Honeypot Sightings0
Affected Products
insyde:kerneltianocore:edk2
Weaknesses (CWE)
CWE-124CWE-787
References
https://bugzilla.tianocore.org/show_bug.cgi?id=3387(infosec@edk2.groups.io)
https://www.insyde.com/security-pledge/SA-2023024(infosec@edk2.groups.io)
https://bugzilla.tianocore.org/show_bug.cgi?id=3387(af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2025/06/msg00007.html(af854a3a-2127-422b-91ae-364da2661108)
https://www.insyde.com/security-pledge/SA-2023024(af854a3a-2127-422b-91ae-364da2661108)
IOC Correlations
No correlations recorded
This product uses data from the NVD API but is not endorsed or certified by the NVD.