CVE-2026-7473

criticalknown exploitedpublic exploitcovered by 1 sourcefirst seen 2026-06-09

Actively exploited. CVE-2026-7473 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-06-09) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.

Public exploit code is available. Proof-of-concept or working exploit code for CVE-2026-7473 is indexed in GitHub PoC. Expect opportunistic scanning and exploitation attempts — prioritize remediation.

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.

CSIRTS triage

What: The vulnerability involves an incomplete comparison that allows the switch to incorrectly handle unexpected tunneled packets.
Who is affected: Deployments of Arista Extensible Operating System that utilize the affected functionality.
Urgency: Remediation is urgent due to active exploitation and critical severity.
Action: Update to the latest version of Arista EOS to mitigate the vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

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Exploitation outlook

Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 53% of all EPSS-scored CVEs.

Exploit availability

Public exploit or proof-of-concept code for CVE-2026-7473 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.

GitHub PoCPublic proof-of-concept repositories on GitHub reference this CVE.look it up ↗

Advisory coverage (1)

criticalexploitedCVE-2026-7473: Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerabilitycisa-kev · 2026-06-09

External references

NVD record for CVE-2026-7473

CVE.org record

CISA KEV catalog

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