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Fencer Intel
critical 9.8

CVE-2015-5684 json

MITRE is populating this ID because it was assigned prior to Lenovo becoming a CNA.

published 2020-03-27 6 y ago modified 2026-06-17 4 mo ago also EUVD-2015-5634

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.7%
EPSS 3.7% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

MITRE is populating this ID because it was assigned prior to Lenovo becoming a CNA. A buffer overflow vulnerability was reported, (fixed and publicly disclosed in 2015) in the Lenovo Service Engine (LSE), affecting various versions of BIOS for Lenovo Notebooks, that could allow a remote user to execute arbitrary code on the system.

Patch / fix

  • lenovo b50-10_firmware cccn13ww\(v1.02\)
  • lenovo flex_2_pro-15_firmware a9cn46ww, b9cn17ww
  • lenovo edge_15_firmware a9cn46ww, b9cn17ww
  • lenovo flex_3-1470_firmware bdcn30ww
  • lenovo flex_3-1570_firmware bdcn30ww
  • lenovo flex_3-1120_firmware c0cn25ww
  • lenovo g40-80_firmware b0cn75ww
  • lenovo g50-80_firmware b0cn75ww
  • lenovo g50-80_touch_firmware b0cn75ww
  • lenovo g50-80_touch_v3000_firmware b0cn75ww
  • lenovo g40-80m_firmware cbcn75ww
  • lenovo g50-80m_firmware cbcn75ww
  • lenovo ideapad_100-14iby_firmware v1.02_\(cccn13ww\)
  • lenovo ideapad_100-15iby_firmware v1.02_\(cccn13ww\)
  • lenovo s21e_firmware c4cn14ww\(v1.04\)
  • lenovo s41-70_firmware bdcn30ww
  • lenovo u41-70_firmware bdcn30ww
  • lenovo s435_firmware bbcn15ww\(v1.06\)
  • lenovo m40-35_firmware bbcn15ww\(v1.06\)
  • lenovo u31-70_firmware afcn30ww\(v2.02\)

Exploit prediction

3.69% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

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

References

Sources

Fencer Intel 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.