How severe is CVE-2022-4575?

CVE-2022-4575 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-2022-4575 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-4575?

CVE-2022-4575 primarily affects Lenovo Thinkpad 25 Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-4575?

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

When was CVE-2022-4575 published?

CVE-2022-4575 was published on 2023-10-30 and last updated on 2026-06-17.

CVE-2022-4575

CVE-2022-4575 is a medium-severity vulnerability in Lenovo Thinkpad 25 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-276.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Lenovo Thinkpad 25 Firmware
Published: 2023-10-30
Last modified: 2026-06-17

Description

A vulnerability due to improper write protection of UEFI variables was reported in the BIOS of some ThinkPad models could allow an attacker with physical or local access and elevated privileges the ability to bypass Secure Boot.

Frequently asked questions

What is CVE-2022-4575?: A vulnerability due to improper write protection of UEFI variables was reported in the BIOS of some ThinkPad models could allow an attacker with physical or local access and elevated privileges the ability to bypass Secure Boot.
How severe is CVE-2022-4575?: CVE-2022-4575 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-2022-4575 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-4575?: CVE-2022-4575 primarily affects Lenovo Thinkpad 25 Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-4575?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-4575 published?: CVE-2022-4575 was published on 2023-10-30 and last updated on 2026-06-17.

References

https://support.lenovo.com/us/en/product_security/LEN-106014

Affected products (13)

cpe:2.3:o:lenovo:thinkpad_25_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_l560_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_p50_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_p50s_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_p70_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_t470_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_t470s_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_t560_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_x1_carbon_4th_gen_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_x1_yoga_1st_gen_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_x260_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_x270_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_yoga_260_firmware:*:*:*:*:*:*:*:*

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