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Fencer Vulns
medium 6.7

CVE-2023-45075 json

A memory leakage vulnerability was reported in the SWSMI_Shadow DXE driver that may allow a local attacker with elevated privileges to writ…

published 2023-11-08 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-49396

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 14%
public exploits
0
none known

Summary

A memory leakage vulnerability was reported in the SWSMI_Shadow DXE driver that may allow a local attacker with elevated privileges to write to NVRAM variables.

Patch / fix

  • lenovo ideacentre_c5-14imb05_firmware o4hkt3ca
  • lenovo ideacentre_3-07ada05_firmware o4fkt39a
  • lenovo ideacentre_3-07imb05_firmware m2vkt21a
  • lenovo ideacentre_g5-14imb05_firmware o4hkt3ca
  • lenovo ideacentre_5-14iob6_firmware m3gkt3da
  • lenovo ideacentre_creator_5-14iob6_firmware m3gkt3da
  • lenovo ideacentre_g5-14amr05_firmware o4zkt2ba
  • lenovo ideacentre_gaming_5-14iob6_firmware m3gkt3da
  • lenovo ideacentre_mini_5_01iaq7_firmware o53kt10a
  • lenovo ideacentre_mini_5-01imh05_firmware o4ekt1ba
  • lenovo legion_t7-34imz5_firmware o5fkt17a
  • lenovo thinkcentre_m625q_firmware m1wkt52a
  • lenovo thinkcentre_m70a_firmware m2skt29a
  • lenovo thinkcentre_m920z_all-in-one_firmware m1mkt56a
  • lenovo thinkcentre_m920x_firmware m1ukt72a
  • lenovo thinkcentre_m920t_firmware m1ukt72a
  • lenovo thinkcentre_m920s_firmware m1ukt72a
  • lenovo thinkcentre_m920q_firmware m1ukt72a
  • lenovo thinkcentre_m90t_firmware m2tkt55a
  • lenovo thinkcentre_m90s_firmware m2tkt55a

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 14% 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 BIOS

Classification

Weakness

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.