CVE-2022-1891
A buffer overflow in the SystemLoadDefaultDxe driver in some Lenovo Notebook products may allow...
A buffer overflow in the SystemLoadDefaultDxe driver in some Lenovo Notebook products may allow an attacker with local privileges to execute arbitrary code.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
A buffer overflow in the SystemLoadDefaultDxe driver in some Lenovo Notebook products may allow an attacker with local privileges to execute arbitrary code.
- Record
CVE-2022-1891- CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
EUVDEUVD-2022-25163
A buffer overflow in the SystemLoadDefaultDxe driver in some Lenovo Notebook products may allow an attacker with local privileges to execute arbitrary code.
- Record
EUVD-2022-25163- CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-f95f-f57p-rc4m
A buffer overflow in the SystemLoadDefaultDxe driver in some Lenovo Notebook products may allow...
A buffer overflow in the SystemLoadDefaultDxe driver in some Lenovo Notebook products may allow an attacker with local privileges to execute arbitrary code.
- Record
GHSA-f95f-f57p-rc4m- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
NVD
A buffer overflow in the SystemLoadDefaultDxe driver in some Lenovo Notebook products may allow an attacker with local privileges to execute arbitrary code.
- Record
CVE-2022-1891- CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-122, CWE-120
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-1891 is a medium vulnerability (CVSS 6.7) in Lenovo Bios, published January 23, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 29th percentile. No source names a fixed version.