Skip to content
Fencer Vulns
medium 6.7

CVE-2023-4029 json

A buffer overflow has been identified in the BoardUpdateAcpiDxe driver in some Lenovo ThinkPad products which may allow an attacker with lo…

published 2023-08-17 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-53922

cvss
6.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 9%
public exploits
0
none known

Summary

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.

Patch / fix

  • lenovo k14_type_21cu_firmware 1.12
  • lenovo k14_type_21cv_firmware 1.12
  • lenovo thinkpad_s2_yoga_gen_8_firmware 1.10
  • lenovo thinkpad_e14_gen_3_firmware 1.15
  • lenovo thinkpad_e15_gen_3_firmware 1.15
  • lenovo thinkpad_l13_gen_2_firmware 1.30
  • lenovo thinkpad_l13_gen_3_firmware 1.19
  • lenovo thinkpad_l13_gen_4_firmware 1.10
  • lenovo thinkpad_l13_yoga_gen_4_firmware 1.10
  • lenovo thinkpad_l13_yoga_gen_2_firmware 1.30
  • lenovo thinkpad_l13_yoga_gen_3_firmware 1.19
  • lenovo thinkpad_l14_gen_2_firmware 1.28
  • lenovo thinkpad_l14_gen_3_firmware 1.23
  • lenovo thinkpad_l14_gen_4_firmware 1.06
  • lenovo thinkpad_l15_gen_2_firmware 1.28
  • lenovo thinkpad_l15_gen_3_firmware 1.23
  • lenovo thinkpad_l15_gen_4_firmware 1.06
  • lenovo thinkpad_p14s_gen_2_firmware 1.34
  • lenovo thinkpad_t14_gen_2_firmware 1.34
  • lenovo thinkpad_t14s_gen_2_firmware 1.37

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Lenovo ThinkPad

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.