How severe is CVE-2023-4028?

CVE-2023-4028 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-2023-4028 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-2023-4028?

CVE-2023-4028 primarily affects Lenovo 13w Yoga Firmware. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-4028?

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

When was CVE-2023-4028 published?

CVE-2023-4028 was published on 2023-08-17 and last updated on 2026-06-17.

CVE-2023-4028

CVE-2023-4028 is a medium-severity vulnerability in Lenovo 13w Yoga 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% (8th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Lenovo 13w Yoga Firmware
Published: 2023-08-17
Last modified: 2026-06-17

Description

A buffer overflow has been identified in the SystemUserMasterHddPwdDxe driver in some Lenovo Notebook products which may allow an attacker with local access and elevated privileges to execute arbitrary code.

Frequently asked questions

What is CVE-2023-4028?: A buffer overflow has been identified in the SystemUserMasterHddPwdDxe driver in some Lenovo Notebook products which may allow an attacker with local access and elevated privileges to execute arbitrary code.
How severe is CVE-2023-4028?: CVE-2023-4028 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-2023-4028 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-2023-4028?: CVE-2023-4028 primarily affects Lenovo 13w Yoga Firmware. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-4028?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-4028 published?: CVE-2023-4028 was published on 2023-08-17 and last updated on 2026-06-17.

References

https://support.lenovo.com/us/en/product_security/LEN-134879

Affected products (29)

cpe:2.3:o:lenovo:13w_yoga_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:13w_yoga_gen_2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_1-11ada05_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_1-11igl05_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_1-14ada05_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_1-14igl05_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:flex_5-14alc05_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:flex_5-14are05_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:flex_5-14iil05_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:flex_5-14itl05_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:flex_5-15alc05_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:flex_5-15iil05_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:flex_5-15itl05_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_flex_5_14abr8_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_flex_5_14alc7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_flex_5_14iau7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_flex_5_14iru8_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_flex_5_16abr8_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_flex_5_16alc7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_flex_5_16iau7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_flex_5_16iru8_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:flex_7_14iru8_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkbook_13s_g2_are_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkbook_13s_g2_itl_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkbook_13s_g3_acn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkbook_13s_g4_iap_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkbook_13x_g2_iap_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkbook_14s_g2_itl_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:yoga_9-15imh5_firmware:*:*:*:*:*:*:*:*

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