How severe is CVE-2020-8322?

CVE-2020-8322 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-8322 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-8322?

CVE-2020-8322 primarily affects Lenovo 330-14ast Firmware. In total, 51 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-8322?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-8322 published?

CVE-2020-8322 was published on 2020-06-09 and last updated on 2026-06-17.

CVE-2020-8322

CVE-2020-8322 is a medium-severity vulnerability in Lenovo 330-14ast Firmware with a CVSS 3.x base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
CVSS v2: 4.6
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Lenovo 330-14ast Firmware
Published: 2020-06-09
Last modified: 2026-06-17

Description

A potential vulnerability in the SMI callback function used in the Legacy USB driver in some Lenovo Notebook and ThinkStation models may allow arbitrary code execution.

Frequently asked questions

What is CVE-2020-8322?: A potential vulnerability in the SMI callback function used in the Legacy USB driver in some Lenovo Notebook and ThinkStation models may allow arbitrary code execution.
How severe is CVE-2020-8322?: CVE-2020-8322 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-8322 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-8322?: CVE-2020-8322 primarily affects Lenovo 330-14ast Firmware. In total, 51 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-8322?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-8322 published?: CVE-2020-8322 was published on 2020-06-09 and last updated on 2026-06-17.

References

https://support.lenovo.com/us/en/product_security/LEN-30042

Affected products (51)

cpe:2.3:o:lenovo:330-14ast_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:330-15ast_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:330-17ast_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:340c-15api_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:340c-15ast_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:720s_touch-15ikb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:720s-15ikb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:730s-13iwl_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:c640-iml_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:e42-80_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:e52-80_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:k22-80_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:v720-12_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:k32-80_kbl_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:k32-80_skl_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:miix_720-12ikb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:s145-14api_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:s145-14ast_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:s145-15api_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:s145-15ast_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:s540-13api_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:s750-iil_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:s940-14iwl_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkbook_13s-iwl_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkbook_14s-iwl_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:v110-14ast_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:v110-14ikb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:v110-15ast_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:v130-15igm_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:v130-15ikb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:v310-15igm_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:v330-15igm_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:v330-15ikb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:v330-15isk_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:v340-iil_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:v340-iml_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:v540s-13_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:14iwl_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:v730-13ikb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:v730-13isk_firmware:-:*:*:*:*:*:*:*

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