In short
- CVE-2021-38578 is a CRITICAL (CVSS 9.8) vulnerability affecting edk2 (tianocore).
- Chance of exploitation in the next 30 days (EPSS): 1.0%, higher than 63.4% of all vulnerabilities.
- No patched version is listed yet: follow the vendor's advisory in References.
| Package | Affected versions | Patched versions |
|---|
| edk2 | ≤ 202202
| No fix yet |
Description
Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.
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