CVE-2026-73468

Security Advisory 0175

MEDIUM

6.5

CVSS Score

Published: September 16, 2026 at 09:55 AM UTC

Updated: September 16, 2026 at 07:24 PM UTC

1 product affected across 1 vendorArista EOS

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Severity

MEDIUM6.5

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

A specially crafted packet can cause the premature expiry of multicast forwarding state on affected interfaces, potentially resulting in temporary multicast traffic loss during the affected period.

Affected

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

Arista EOS · Arista Networks

60%

1.0.0 ≤ v < 4.33.0F4.33.0F ≤ v ≤ 4.33.8M4.34.0F ≤ v ≤ 4.34.7.1M4.35.0F ≤ v ≤ 4.35.5M4.36.0F ≤ v ≤ 4.36.1F1.0.0 4.33.0F 4.34.0F 4.35.0F 4.36.0F

Affected range stops below 4.33.0F, 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/24731-security-advisory-0175

References (1)

Vendor Advisory

Source: cverecord

https://www.arista.com/en/support/advisories-notices/security-advisory/24731-security-advisory-0175

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

6.5MEDIUMArista

Vector?

Quick Info

StatusAWAITING ANALYSIS

CWE

CWE-670

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