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CVE-2026-75945— A race condition may cause a supplicant to remain in an authorized state after a clear dot1x host all command is issued.

Quick assessment

Affected
Arista Networks EOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

竞态条件（race condition）可能导致 supplicant 在发出“clear dot1x host all”命令后仍处于已授权状态。

CVSS 2.6 · Low

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2026-75945

Vulnerability Information
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Vulnerability Title
A race condition may cause a supplicant to remain in an authorized state after a clear dot1x host all command is issued.
Source: CVE Program / CVE List V5
Vulnerability Description
A race condition may cause a supplicant to remain in an authorized state after a clear dot1x host all command is issued.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
清理环节不完整
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Arista Networks EOS 4.36.0 ~ 4.36.1F -

II. Public POCs for CVE-2026-75945

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III. Intelligence Information for CVE-2026-75945

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Vendor Advisories for CVE-2026-75945 (1)

Same Patch Batch · Arista Networks · 2026-09-14 · 5 CVEs total

CVE-2026-73449 5.9 MEDIUM On affected platforms running Arista EOS with both 802.1X port authentication and the RADI
CVE-2026-75943 2.6 LOW A brief (milliseconds to seconds) traffic leak may occur when an authenticated supplicant
CVE-2026-75944 2.6 LOW A race condition during supplicant re-authentication may leave a stale ACL entry that pers
CVE-2026-77191 2.6 LOW All of the CVEs covered in this advisory apply to affected platforms running Arista EOS wi

IV. Related Vulnerabilities

Same product: EOS
Same vendor: Arista Networks
Same weakness: CWE-459

V. Comments for CVE-2026-75945

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