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Fencer Intel
high 8.6

CVE-2021-33141 json

Improper input validation in some Intel(R) Ethernet Adapters and Intel(R) Ethernet Controller I225 Manageability firmware may allow an unau…

published 2y ago modified 4mo ago also EUVD-2021-19856

cvss
8.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

Improper input validation in some Intel(R) Ethernet Adapters and Intel(R) Ethernet Controller I225 Manageability firmware may allow an unauthenticated user to potentially enable denial of service via network access.

Patch / fix

  • intel ethernet_adapter_complete_driver 29.0.1
  • intel ethernet_controller_i225-it_firmware 1.87
  • intel ethernet_controller_i225-lm_firmware 1.87
  • intel ethernet_controller_i225-v_firmware 1.87

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CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2y ago

Exploit prediction

0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Affected products

  • n/a Intel(R) Ethernet Adapters and Intel(R) Ethernet Controller I225 Manageability firmware
  • intel ethernet_adapter
  • intel ethernet_controller_i225_manageability_firmware

Classification

Weakness
  • CWE-20 Improper Input Validation

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.