CVE-2022-1891
CVE-2022-1891 is a medium-severity vulnerability in Lenovo Thinkbook 14-iml Firmware with a CVSS 3.x base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.
Key facts
- Severity: Medium (CVSS 3.x base score 6.7)
- EPSS exploit prediction: 0% (26th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-120
- Affected product: Lenovo Thinkbook 14-iml Firmware
- Published:
- Last modified:
Description
A buffer overflow in the SystemLoadDefaultDxe driver in some Lenovo Notebook products may allow an attacker with local privileges to execute arbitrary code.
Frequently asked questions
- What is CVE-2022-1891?
- A buffer overflow in the SystemLoadDefaultDxe driver in some Lenovo Notebook products may allow an attacker with local privileges to execute arbitrary code.
- How severe is CVE-2022-1891?
- CVE-2022-1891 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2022-1891 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-1891?
- CVE-2022-1891 primarily affects Lenovo Thinkbook 14-iml Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2022-1891?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2022-1891 published?
- CVE-2022-1891 was published on 2023-01-26 and last updated on 2026-06-17.
References
Affected products (6)
- cpe:2.3:o:lenovo:thinkbook_14-iml_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:lenovo:thinkbook_14-iil_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:lenovo:thinkbook_15-iil_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:lenovo:thinkbook_15-iml_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:lenovo:yoga_c640-13iml_lte_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:lenovo:yoga_c640-13iml_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Lenovo Thinkbook 14-iml Firmware
- CVE-2022-1892 — Medium (CVSS 6.7): A buffer overflow in the SystemBootManagerDxe driver in some Lenovo Notebook products may allow an attacker with local…
- CVE-2022-1890 — Medium (CVSS 6.7): A buffer overflow in the ReadyBootDxe driver in some Lenovo Notebook products may allow an attacker with local…
All CVEs affecting Lenovo Thinkbook 14-iml Firmware →
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