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VulnerabilityPublished

CVE-2026-75945: Arista Networks EOS · Incomplete Cleanup

Affects Arista Networks EOSSource CVE Database V5

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Not known to be exploited · CVSS 2.6 Low.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 3.1 base score
2.6Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Arista NetworksEOSAffected
  • >=4.36.0 <=4.36.1F
Fixed in–
Aristaarista/eospkg:rpm/arista/eosOther threatsAffected
  • >=4.36.0 <=4.36.1F
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Until a fix is available, administrators should be aware of the potential for incomplete cleanup when using the 'clear dot1x host all' command and consider operational controls accordingly.

Description

CVE-2026-75945 is a low-severity vulnerability in Arista Networks EOS where a race condition may cause a supplicant to remain authorized after the 'clear dot1x host all' command is issued. This incomplete cleanup issue could lead to a supplicant retaining an authorized state unexpectedly.

References

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