CVE-2026-102162

High

Description

On affected Arista Wi-Fi access points with captive portal, or application firewall enabled on at least one SSID, a vulnerability in the wireless gateway service could allow an unauthenticated network-adjacent attacker to send a crafted packet that triggers a stack overflow, resulting in a denial-of-service condition or potentially execute arbitrary code on the device. The wireless gateway service is automatically restarted after a crash, allowing repeated exploitation attempts.

SeverityHigh

CVSS8.8

Exploit probability—

ProductWi-Fi Access Points

PublishedOct 6, 2026

First seenOct 6, 2026

Weakness typeCWE-121CWE-121

How to fix

Update

Arista Networks Wi-Fi Access Points21.3.0 or later

Vendor advisories

arista.com/en/support/advisories-notices/security-advisory/24809-security-advisory-0193

Affected products

Product	Affected versions	Fixed in
Arista Networks Wi-Fi Access Points	22.0.0 ≤ v ≤ 22.0.1F-32, 21.3.0 ≤ v ≤ 21.3.0M-13, 1.0.0 ≤ v < 21.3.0	21.3.0

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