Is CVE-2026-73464 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-73464 being exploited in the wild.

How severe is CVE-2026-73464?

High severity, with a CVSS score of 8.8, published 16 September 2026.

Which products and versions are affected?

Arista Eos 4.36.0.1F and below (4.36.x); 4.35.5M and below (4.35.x); 4.34.7M and below (4.34.x); 4.33.8M and below (4.33.x); all 4.32.x, 4.31.x, 4.30.x, and 4.29.x.

Is there a fix for CVE-2026-73464?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-73464 attacked?

It is attacked over the network, in an operating system.

Am I affected by CVE-2026-73464?

Check whether you run Arista Eos at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-73464: Arista EOS code injection in gNMI interface

CVE-2026-73464 · Severity: high · CVSS 8.8 · Published 2026-09-16

Arista EOS is network operating system running on enterprise switches. When the gRPC Network Management Interface (gNMI) is enabled, an authenticated attacker can send a specially crafted request to execute arbitrary code with root privileges on the switch, potentially compromising network infrastructure, stealing sensitive data, or causing service outages.

Technologies: Arista Eos. Vendors: Arista.

Quick answers

Is CVE-2026-73464 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-73464 being exploited in the wild.
How severe is CVE-2026-73464?: High severity, with a CVSS score of 8.8, published 16 September 2026.
Which products and versions are affected?: Arista Eos 4.36.0.1F and below (4.36.x); 4.35.5M and below (4.35.x); 4.34.7M and below (4.34.x); 4.33.8M and below (4.33.x); all 4.32.x, 4.31.x, 4.30.x, and 4.29.x.
Is there a fix for CVE-2026-73464?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-73464 attacked?: It is attacked over the network, in an operating system.
Am I affected by CVE-2026-73464?: Check whether you run Arista Eos at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a code injection flaw (CWE-94) in the gNMI implementation of Arista EOS. An authenticated client with gNMI access can exploit this through a specially crafted request over the network to achieve arbitrary code execution with root-level privileges. The attack requires gNMI transport to be explicitly enabled on the affected switch and the attacker to be authenticated to the management interface. No user interaction is required. Affected versions include EOS 4.36.0.1F and earlier in the 4.36.x train, 4.35.5M and earlier in 4.35.x, 4.34.7M and earlier in 4.34.x, 4.33.8M and earlier in 4.33.x, and all releases in 4.32.x, 4.31.x, 4.30.x, and 4.29.x trains. Arista has released patched versions and is not aware of active exploitation in the wild.

Affected products

Arista EOS 4.36.0.1F and below (4.36.x); 4.35.5M and below (4.35.x); 4.34.7M and below (4.34.x); 4.33.8M and below (4.33.x); all 4.32.x, 4.31.x, 4.30.x, and 4.29.x

Timeline

2026-09-09: disclosed
2026-09-16: advisory

References

https://www.arista.com/en/support/advisories-notices/security-advisory/24722-security-advisory-0166

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