Low severity · published Sep 16, 2026
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 for
3.0
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
Attack vector
Adjacent
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EO
EOS · Arista Networks
4.36.0 through 4.36.1F; 4.35.0 through 4.35.5M; 4.34.0 through 4.34.7M; 4.33.0 through 4.33.9M · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-73442
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-73442
www.arista.com
https://www.arista.com/en/support/advisories-notices/security-advisory/24713-security-advisory-0157
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