CVE-2026-102164 Security Advisory 0196
A crafted packet from a wireless client can cause Arista access points with specific VXLAN configurations to leak memory contents in network traffic.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-102164?
CVE-2026-102164 is a low-severity vulnerability in Arista Networks Wi-Fi Access Points, published on 6 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-125
Which versions are affected by CVE-2026-102164?
How do I fix CVE-2026-102164?
No fix has been published for CVE-2026-102164 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-102164 being exploited?
There is no known exploitation of CVE-2026-102164 in the wild and no public exploit code.
Sources
Also known as GHSA-39p9-4mhh-h995.