CVE-2026-73457 Information disclosure in EOS
Authenticated users can view gNPSI client credentials in clear text within accounting logs on Arista EOS devices with gNPSI enabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73457?
CVE-2026-73457 is a medium-severity vulnerability in Arista Networks EOS, published on 16 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Under certain circumstances on affected platforms running Arista EOS with gRPC Network Packet Sampling Interface (gNPSI) enabled, the gNPSI client credentials might be logged in clear text in local or remote accounting logs to authenticated users.
Weakness: CWE-532
Which versions are affected by CVE-2026-73457?
How do I fix CVE-2026-73457?
No fix has been published for CVE-2026-73457 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-73457 being exploited?
There is no known exploitation of CVE-2026-73457 in the wild and no public exploit code.
Sources
Also known as GHSA-8w53-fqwp-95j2.