CVE-2026-73442 Information disclosure in EOS
Authenticated users can view cleartext VRRP credentials in logs on Arista EOS devices with VRRP enabled, exposing sensitive authentication data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73442?
CVE-2026-73442 is a low-severity vulnerability in Arista Networks EOS, published on 16 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
On affected platforms running Arista EOS with VRRP enabled, the peer device VRRP authentication credentials are logged in cleartext on the switch, allowing an authenticated user with sufficient privileges to view agent trace logs (or a system receiving forwarded log output) to obtain the peer device VRRP authentication credentials without having access to the network segment on which VRRP is running.
Weakness: CWE-532
Which versions are affected by CVE-2026-73442?
How do I fix CVE-2026-73442?
No fix has been published for CVE-2026-73442 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-73442 being exploited?
There is no known exploitation of CVE-2026-73442 in the wild and no public exploit code.
Sources
Also known as GHSA-2p66-p32j-x932.