What is the CVSS score of CVE-2023-4028?

CVE-2023-4028 has a CVSS 3.1 base score of 6.7 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.2%.

13W Yoga Firmware CVE-2023-4028

MEDIUM

Classic Buffer Overflow (CWE-120)

2023-08-17 psirt@lenovo.com

Buffer Overflow RCE Lenovo 13W Yoga Firmware 13W Yoga Gen 2 Firmware Ideapad 1 11Ada05 Firmware Ideapad 1 11Igl05 Firmware Ideapad 1 14Ada05 Firmware Ideapad 1 14Igl05 Firmware Flex 5 14Alc05 Firmware Flex 5 14Are05 Firmware Flex 5 14Iil05 Firmware Flex 5 14Itl05 Firmware Flex 5 15Alc05 Firmware Flex 5 15Iil05 Firmware Flex 5 15Itl05 Firmware Ideapad Flex 5 14Abr8 Firmware Ideapad Flex 5 14Alc7 Firmware Ideapad Flex 5 14Iau7 Firmware Ideapad Flex 5 14Iru8 Firmware Ideapad Flex 5 16Abr8 Firmware Ideapad Flex 5 16Alc7 Firmware Ideapad Flex 5 16Iau7 Firmware Ideapad Flex 5 16Iru8 Firmware Flex 7 14Iru8 Firmware Thinkbook 13S G2 Are Firmware Thinkbook 13S G2 Itl Firmware Thinkbook 13S G3 Acn Firmware Thinkbook 13S G4 Iap Firmware Thinkbook 13X G2 Iap Firmware Thinkbook 14S G2 Itl Firmware Yoga 9 15Imh5 Firmware

6.7

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.7 MEDIUM

AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Aug 17, 2023 - 17:15 nvd

MEDIUM 6.7

DescriptionNVD

AnalysisAI

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. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. 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. Affected products include: Lenovo 13W Yoga Firmware, Lenovo 13W Yoga Gen 2 Firmware, Lenovo Ideapad 1-11Ada05 Firmware, Lenovo Ideapad 1-11Igl05 Firmware, Lenovo Ideapad 1-14Ada05 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.