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Fencer Intel
medium 4.4

CVE-2021-33126 json

Improper access control in the firmware for some Intel(R) 700 and 722 Series Ethernet Controllers and Adapters before versions 8.5 and 1.5.…

published 4y ago modified 4mo ago also EUVD-2021-19841

cvss
4.4
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

Improper access control in the firmware for some Intel(R) 700 and 722 Series Ethernet Controllers and Adapters before versions 8.5 and 1.5.5 may allow a privileged user to potentially enable denial of service via local access.

Patch / fix

  • intel ethernet_controller_xxv710_firmware 8.5
  • intel ethernet_controller_xl710_firmware 8.5
  • intel ethernet_controller_v710_firmware 8.5
  • intel ethernet_controller_x710_firmware 8.5
  • intel ethernet_network_adapter_x722da2_firmware 1.5.5
  • intel ethernet_network_adapter_x722da4fh_firmware 1.5.5
  • intel ethernet_network_adapter_x722da4g1p5_firmware 1.5.5

Is CVE-2021-33126 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.20% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CISA ADP 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Affected products

  • n/a Intel(R) 700 and 722 Series Ethernet Controllers and Adapters

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.