CVE-2026-102164

Security Advisory 0196

Published Oct 6, 2026 CVSS 4.0 · 2.3 Low EPSS < 1% KEV · Not listed
Description
On affected Arista access points configured with VXLAN tunnelling and L2-proxy (a specific configuration unique to the VESPA use-case), a wireless client associated to the tunnelled SSID can send a crafted packet, causing the access point to reveal memory contents in network traffic. No write primitive or remote code execution is possible.

Remediation

Vendor Solution

CVE-2026-102164 has been fixed in the following releases: - 22.1.1F-61 and later release in the 22.x train - 21.4.0M-12 and later releases in the 21.x train


Vendor Workaround

If VXLAN tunnelling with L2-proxy is not required, disabling this configuration eliminates exposure.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Arista
Arista wi-fi Access Points
Vendors & Products Arista
Arista wi-fi Access Points
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description On affected Arista access points configured with VXLAN tunnelling and L2-proxy (a specific configuration unique to the VESPA use-case), a wireless client associated to the tunnelled SSID can send a crafted packet, causing the access point to reveal memory contents in network traffic. No write primitive or remote code execution is possible.
Title Security Advisory 0196
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Arista
Published
Updated
Oct 6, 2026, 8:07 PM
Reserved
Sep 28, 2026, 5:45 PM
Status
Awaiting Analysis
Published
Oct 6, 2026, 8:17 PM
Modified
Oct 7, 2026, 1:38 PM