9.8
CVE-2021-38578
- EPSS 0.06%
- Veröffentlicht 03.03.2022 22:15:08
- Zuletzt bearbeitet 03.11.2025 20:15:49
- Quelle infosec@edk2.groups.io
- CVE-Watchlists
- Unerledigt
LoginExisting CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.06% | 0.198 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 9.8 | 3.9 | 5.9 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
|
| nvd@nist.gov | 7.5 | 10 | 6.4 |
AV:N/AC:L/Au:N/C:P/I:P/A:P
|
| infosec@edk2.groups.io | 7.4 | 0.8 | 6 |
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L
|
CWE-124 Buffer Underwrite ('Buffer Underflow')
The product writes to a buffer using an index or pointer that references a memory location prior to the beginning of the buffer.
CWE-787 Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.