Is CVE-2026-7473 exploitable?

Yes — CVE-2026-7473 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it is confirmed exploited in the wild.

Is CVE-2026-7473 a false positive?

No practitioners have marked CVE-2026-7473 a false positive so far (2 verdicts).

How do I remediate CVE-2026-7473?

Practitioners have shared remediation steps for CVE-2026-7473 — see the remediation notes on this page.

CVE-2026-7473

is CVE-2026-7473real, exploitable, or a false positive? Here's the community ground truth.

☆ Watch

Medium · CVSS 5.8EPSS 0.4%CISA KEVCWE-1023

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

On affected platforms running Arista EOS where a tunnel decapsulation configuration—such as VXLAN (Virtual Extensible LAN), decap-groups, or a GRE (Generic Routing Encapsulation) tunnel interface—is present, the switch will incorrectly decapsulate and forward other unexpected tunneled packet with a destination IP matching its configured decapsulation IP. This occurs because the switch does not verify the tunnel protocol type, potentially leading to the unexpected processing of non-configured tunnel traffic. This issue has been reported as being exploited in the wild.

References

NVD MITRE CVE.org CISA KEV

Published Jun 5, 2026

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Community ground truth

Community verdict

2 verdicts

Not a real issue

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Community real-world severity: High (High 2) — CVSS base score 5.8

Practitioners rate this higher than its CVSS — treat with extra caution.

Field notes & remediation

Verdicts are the quick signal — notes are the evidence and fixes behind them.

0
Field note · Diego RamírezCurated
Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability — Arista Extensible Operating System (EOS) contains an incomplete comparison with missing factors vulnerability when the switch incorrectly decapsulate and forwards other unexpected tunneled packet with a destination IP matching its configured decapsulation IP. Listed in the CISA KEV catalog (added 2026-06-09) — confirmed exploited in the wild, not theoretical. FIRST EPSS puts the chance of exploitation in the next 30 days at ~0%. Treat it as real and prioritize remediation over triage.
0
Remediation · Marco FerriCurated
Required action for Arista Extensible Operating System: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA set a federal remediation due date of 2026-06-23. After patching, verify the vulnerable path is no longer reachable before closing the finding.