CVE-2026-73461

Security Advisory 0163

HIGH

CVSS Score

Published: September 16, 2026 at 08:01 AM UTC

Updated: September 17, 2026 at 04:18 AM UTC

1 product affected across 1 vendorArista EOS

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Severity

HIGH8

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

Description

On affected EOS platforms with AAA-based gRPC authorization enabled for OpenConfig, gRPC requests of an authenticated user to OpenConfig may use the wrong privilege level, resulting in an authorization using the wrong AAA method list. This does not impact non-gRPC OpenConfig requests such as NETCONF.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Arista EOS · Arista Networks

60%

4.29.0F ≤ v < 4.30.0F4.30.0F ≤ v < 4.31.0F4.31.0F ≤ v < 4.32.0F4.32.0F ≤ v ≤ 4.32.11M4.33.0F ≤ v ≤ 4.33.8M4.34.0F ≤ v ≤ 4.34.7M4.35.0F ≤ v ≤ 4.35.5M4.36.0F ≤ v ≤ 4.36.0.1F4.29.0F 4.30.0F 4.31.0F 4.32.0F 4.33.0F 4.34.0F 4.35.0F 4.36.0F

Affected range stops below 4.30.0F, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.31.0F, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.32.0F, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://www.arista.com/en/support/advisories-notices/security-advisory/24719-security-advisory-0163

References (1)

Vendor Advisory

Source: cverecord

https://www.arista.com/en/support/advisories-notices/security-advisory/24719-security-advisory-0163

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8HIGHArista

Attack Vector: NETWORK
Complexity: HIGH
Privileges: HIGH
User Interaction: NONE
Scope: CHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusAWAITING ANALYSIS

CWE

CWE-266

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