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.
Advisories

No advisories yet.

Fixes

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


Workaround

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

History

Tue, 06 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 06 Oct 2026 20:00:00 +0000

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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Arista

Published:

Updated: 2026-10-06T20:07:54.692Z

Reserved: 2026-09-28T17:45:17.722Z

Link: CVE-2026-102164

cve-icon Vulnrichment

Updated: 2026-10-06T20:07:51.355Z

cve-icon NVD

Status : Received

Published: 2026-10-06T20:17:11.667

Modified: 2026-10-06T21:17:03.367

Link: CVE-2026-102164

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses