MEDIUM
CVE-2023-4029
CWE-120Published: August 17, 2023· Updated: Jun 17, 2026
6.7
CVSS v3.1
Official Description
A buffer overflow has been identified in the BoardUpdateAcpiDxe driver in some Lenovo ThinkPad products which may allow an attacker with local access and elevated privileges to execute arbitrary code.
Technical Analysis
CVE-2023-4029 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.7.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected Vendors & Products
Lenovo52 product(s)
k14 type 21cu firmwarek14 type 21cuk14 type 21cv firmwarek14 type 21cvthinkpad s2 yoga gen 8 firmwarethinkpad s2 yoga gen 8thinkpad e14 gen 3 firmwarethinkpad e14 gen 3thinkpad e15 gen 3 firmwarethinkpad e15 gen 3thinkpad l13 gen 2 firmwarethinkpad l13 gen 2+40
Source: NVD CPE · 52 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
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GitHub PoC Search
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Rapid7 / Metasploit
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PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (2)
→
https://support.lenovo.com/us/en/product_security/LEN-134879Vendor Advisory
→
https://support.lenovo.com/us/en/product_security/LEN-134879Vendor Advisory
Quick Facts
CVE IDCVE-2023-4029
CVSS Score6.7 / 10
SeverityMEDIUM
WeaknessCWE-120
CISA KEVNo
Affected1 vendor(s)
PublishedAug 17, 2023
Related CVEs (CWE-120)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-4029 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.