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Fencer Vulns
medium 5.5

CVE-2021-33086 json

Out-of-bounds write in firmware for some Intel(R) NUCs may allow an authenticated user to potentially enable denial of service via local ac…

published 2021-11-17 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-19801

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits
0
none known

Summary

Out-of-bounds write in firmware for some Intel(R) NUCs may allow an authenticated user to potentially enable denial of service via local access.

Patch / fix

  • intel nuc_m15_laptop_kit_lapbc510_firmware bctgl357.0064
  • intel nuc_m15_laptop_kit_lapbc710_firmware bctgl357.0064
  • intel nuc_11_compute_element_cm11ebc4w_firmware ebtgl357.0056
  • intel nuc_11_compute_element_cm11ebi38w_firmware ebtgl357.0056
  • intel nuc_11_compute_element_cm11ebi58w_firmware ebtgl357.0056
  • intel nuc_11_compute_element_cm11ebi716w_firmware ebtgl357.0056
  • intel nuc_11_performance_kit_nuc11pahi3_firmware patgl357.0040
  • intel nuc_11_performance_kit_nuc11pahi5_firmware patgl357.0040
  • intel nuc_11_performance_kit_nuc11pahi7_firmware patgl357.0040
  • intel nuc_11_performance_kit_nuc11paki3_firmware patgl357.0040
  • intel nuc_11_performance_kit_nuc11paki5_firmware patgl357.0040
  • intel nuc_11_performance_kit_nuc11paki7_firmware patgl357.0040
  • intel nuc_11_performance_mini_pc_nuc11paqi50wa_firmware patgl357.0040
  • intel nuc_11_performance_mini_pc_nuc11paqi70qa_firmware patgl357.0040
  • intel nuc_11_pro_board_nuc11tnbi3_firmware tntgl357.0057
  • intel nuc_11_pro_board_nuc11tnbi5_firmware tntgl357.0057
  • intel nuc_11_pro_board_nuc11tnbi7_firmware tntgl357.0057
  • intel nuc_11_pro_kit_nuc11tnhi3_firmware tntgl357.0057
  • intel nuc_11_pro_kit_nuc11tnhi30l_firmware tntgl357.0057
  • intel nuc_11_pro_kit_nuc11tnhi30p_firmware tntgl357.0057

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • n/a Intel(R) NUCs

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.