What’s Vulnerable › Vulnerabilities
CVE-2026-73454: Security Advisory 0165
- Severity: high (CVSS 8.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-16 · updated 2026-09-17
- Weakness: CWE-77
Description
On affected platforms running Arista EOS with gRPC Network Security Interface (gNSI) Credentialz configured, a specially crafted request can cause unintended modifications to the target account's properties. This may result in the account being assigned elevated privileges or access beyond what an administrator intended.
Affected products
- Arista Networks EOS: from 4.30.0F before 4.31.0F; from 4.31.0F before 4.32.0F; from 4.32.0F before 4.33.0F; from 4.33.0F through 4.33.8M; from 4.34.0F through 4.34.7M; from 4.35.0F through 4.35.5M — fixed in 4.31.0F, 4.32.0F, 4.33.0F
How to fix
Upgrade to a fixed version: Arista Networks EOS 4.31.0F, 4.32.0F, 4.33.0F. Check the vendor advisory for mitigations.
References
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