Information disclosure in Arista Networks Eos

CVE-2026-73442

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 3.0 (Low). Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (11.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-73442: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-73442?
CVE-2026-73442 is a low-severity vulnerability in Arista Networks Eos, classified under Insertion of Sensitive Information into Log File. CVSS score: 3.0/10. Published 2026-09-16.
How severe is CVE-2026-73442?
Low severity. CVSS v3 base score is 3.0 out of 10.