CVE-2026-73447 Security Advisory 0162 - gNSI Certz/Bootz OS Command Injection via Crafted Rotate Request
Privileged attackers can execute arbitrary OS commands with root privileges via crafted gNSI Certz/Bootz requests, leading to full device compromise.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73447?
CVE-2026-73447 is a critical command injection vulnerability in Arista Networks EOS, published on 16 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A privileged attacker can exploit certain operation to execute arbitrary commands with root privileges, leading to full device compromise. An authenticated user can exploit gRPC Network Security Interface (gNSI) Certz service on Arista EOS-based products to escalate privileges and execute arbitrary OS commands via a crafted Certz Rotate request. The Bootz service is also affected.
Weakness: CWE-78
Which versions are affected by CVE-2026-73447?
How do I fix CVE-2026-73447?
No fix has been published for CVE-2026-73447 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-73447 being exploited?
There is no known exploitation of CVE-2026-73447 in the wild and no public exploit code.
Sources
Also known as GHSA-669f-m4vm-pcm2.