CVE-2026-102169

Security Advisory 0194

State: Published
Severity: 7.1 High
Published: Oct 6, 2026
Updated: Oct 6, 2026
Reserved: Sep 28, 2026

Description

On affected Arista Wi-Fi access points with Captive Portal enabled, an unauthenticated wireless client connected to a captive-portal-enabled SSID can crash the portal service with a crafted HTTP request. The service automatically restarts, but a sustained low-rate attack can cause a persistent denial of service of the captive portal. Remote code execution is not possible.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	Arista
3.1	6.5 Medium	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	Arista

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
Wi-Fi Access PointsArista Networks	22.0.0 through 22.0.1F-32Affected 21.3.0 through 21.3.0M-13Affected 1.0.0 to before 21.3.0Affected

References

https://www.arista.com/en/support/advisories-notices/security-advisory/24810-security-advisory-0194vendor-advisory

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