CVE-2026-73457NVD

Vulnerability Summary

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.

Severity Level

MEDIUM(5.3)

Published Date

Sep 16, 2026

Last Modified

Sep 17, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.32%Probability

Root Weakness (CWE)

CWE-532: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v4.0 Base Metrics — Score 6.0 (MEDIUM)

Attack VectorNetwork

Attack ComplexityLow

Attack RequirementsPresent

Privileges RequiredLow

User InteractionNone

Confidentiality (Vulnerable System)High

Integrity (Vulnerable System)None

Availability (Vulnerable System)None

Confidentiality (Subsequent System)None

Integrity (Subsequent System)None

Availability (Subsequent System)None

CVSS v3.1 Base Metrics — Score 5.3 (MEDIUM)

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityNone

AvailabilityNone

Affected & Patched Versions

Affected Versions

Arista Networks EOS >= 4.36.0 and <= 4.36.1F
Arista Networks EOS >= 4.35.0 and <= 4.35.5M
Arista Networks EOS >= 4.34.2F and <= 4.34.7M

Patched Versions

Arista Networks EOS 4.36.1F
Arista Networks EOS 4.35.5M
Arista Networks EOS 4.34.7M

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