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Fencer Intel
medium 5.7

CVE-2021-33139 json

Improper conditions check in firmware for some Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products before version 22.100 ma…

published 4y ago modified 4mo ago also EUVD-2021-19854

cvss
5.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 42%
public exploits
0
none known

Summary

Improper conditions check in firmware for some Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products before version 22.100 may allow an authenticated user to potentially enable denial of service via adjacent access.

Patch / fix

  • intel ax211_firmware 22.100
  • intel ax210_firmware 22.100
  • intel ax201_firmware 22.100
  • intel ax200_firmware 22.100
  • intel ac_9560_firmware 22.100
  • intel ac_9462_firmware 22.100
  • intel ac_9461_firmware 22.100
  • intel ac_9260_firmware 22.100
  • intel ac_8265_firmware 22.100
  • intel ac_8260_firmware 22.100
  • intel ac3168_firmware 22.100
  • intel ac_7265_firmware 22.100
  • intel ac_3165_firmware 22.100
  • intel ax1675_firmware 22.100
  • intel ax1650_firmware 22.100
  • intel ac_1550_firmware 22.100
  • kernel-firmware SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 20220509-150400.4.5.1
  • kernel-firmware SLES for SAP 15 SP2, SLES for SAP 15 SP1, SLES 15 SP2-LTSS +12 more 20200107-150100.3.31.1
  • kernel-firmware SLE Module for Basesystem 15 SP3, SLE Micro 5.1 20210208-150300.4.7.1
  • kernel-firmware SLES for SAP 15, SLES 15-LTSS, SLE High Performance Computing 15-LTSS +1 more 20191118-3.39.1
  • kernel-firmware SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +3 more 20190618-5.22.1
  • kernel-firmware SLES for SAP 15 SP2, SLES for SAP 15 SP1, SLES 15 SP2-LTSS +14 more 20200107-3.26.1

suse advisories SUSE-SU-2022:1923-1SUSE-SU-2022:1751-1SUSE-SU-2022:1065-1SUSE-SU-2022:0933-1SUSE-SU-2022:0910-1SUSE-SU-2022:0721-1

  • kernel-firmware-all openSUSE Tumbleweed 20250206-1.1
  • kernel-firmware-amdgpu openSUSE Tumbleweed 20250206-1.1
  • kernel-firmware-ath10k openSUSE Tumbleweed 20250206-1.1
  • kernel-firmware-ath11k openSUSE Tumbleweed 20250206-1.1
  • kernel-firmware-ath12k openSUSE Tumbleweed 20250206-1.1
  • kernel-firmware-atheros openSUSE Tumbleweed 20250206-1.1
  • kernel-firmware-bluetooth openSUSE Tumbleweed 20250208-1.1
  • kernel-firmware-bnx2 openSUSE Tumbleweed 20250206-1.1

opensuse advisories openSUSE-SU-2025:14804-1openSUSE-SU-2025:14769-1openSUSE-SU-2025:14770-1openSUSE-SU-2025:14771-1openSUSE-SU-2025:14772-1openSUSE-SU-2025:14773-1

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.7 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 5.7 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 5.7 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 2.7 AV:A/AC:L/Au:S/C:N/I:N/A:P

Affected products

  • n/a Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products

Classification

Weakness
  • CWE-754 Improper Check for Unusual or Exceptional Conditions

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.