Blue Goat CyberBlue Goat CyberSMMedical Device Cybersecurity
    Start here
    Services
    • FDA Premarket Cybersecurity Package
    • Medical Device Penetration Testing
    • Medical Device Threat Modeling
    • FDA Deficiency Response
    • FDA Postmarket Cybersecurity
    • MedTech Compliance Bundle
    See all services
    Products

    Blue Goat products

    • GoatWatch logoGoatWatchSBOM risk management for medical devices
    About
    Resources

    Learn

    • Blog
    • Podcast
    • Webinars
    • Talks & workshops
    • Glossary
    • FAQs

    Playbooks & Tools

    • Guides
    • Playbooks (PDF)
    • Infographics
    • Interactive Tools

    Signals & Proof

    • Goat FeedNew
    • News
    • Medical Device Security News
    • The Goat's Weekly
    • Case Studies
    • Proof / Receipts
    All resources, topic hubs, & collections →
    ⌘K
    Book Strategy SessionHow to prepare →
    Blue Goat Cyber

    Full-service medical device cybersecurity. We protect patients by securing connected medical devices from design through postmarket.

    275+ FDA submissions supported, zero cybersecurity rejections · Mission: 1,000 by 2028

    SDVOSB · Service-Disabled Veteran-Owned Small Business

    We sponsor 10 community projects →

    Services

    • FDA Premarket Cybersecurity Package
    • FDA Deficiency Response
    • Medical Device Threat Modeling
    • Medical Device Penetration Testing
    • FDA Postmarket Cybersecurity
    • All services →
    Services
    • FDA Premarket Cybersecurity Package
    • FDA Deficiency Response
    • Medical Device Threat Modeling
    • Medical Device Penetration Testing
    • FDA Postmarket Cybersecurity
    • All services →

    Company

    • About
    • Core values
    • Manifesto
    • Leadership
    • Why Us
    • Partners
    • Careers
    • Press
    • Press kit
    • Contact
    • Company overviewPDF
    Company
    • About
    • Core values
    • Manifesto
    • Leadership
    • Why Us
    • Partners
    • Careers
    • Press
    • Press kit
    • Contact
    • Company overviewPDF

    Resources

    • Blog
    • Guides
    • Podcast
    • Case studies
    • Monthly Pulse newsletter
    • All resources →
    Resources
    • Blog
    • Guides
    • Podcast
    • Case studies
    • Monthly Pulse newsletter
    • All resources →

    Get in touch

    • info@bluegoatcyber.com
    • 844-939-GOAT
    • Book a strategy session →
    • 1776 N Scottsdale Rd, Unit 727
      Scottsdale, AZ 85257Serving clients worldwide

    Follow

    © 2026 Blue Goat Cyber. All rights reserved.

    • Privacy
    • Terms
    • Cookies
    • Sitemap
    • Accessibility
    • CVD

    MedTech Cybersecurity · Since 2022

    Goat Feed · KEV

    CISA KEV: Arista Extensible Operating System CVE-2026-7473 (CVSS 4.0 6.9 MEDIUM) - Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability

    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.

    Back to the daily feed
    KEV
    criticalPublished June 21, 2026 at 9:38 PM UTC
    Blue Goat take· Blue Goat Cyber Research

    This vulnerability allows attackers to bypass network isolation by sending unauthorized traffic that the switch incorrectly processes as legitimate. Hospitals using Arista hardware for software defined networking or image routing are most at risk of lateral movement across clinical VLANs. IT teams must verify if their tunnel configurations match the KEV criteria and apply the vendor patch immediately.

    Blue Goat Risk Score

    Blue Goat Cyber MedTech rubric v1.0 · methodology

    6.5
    of 10
    notable
    CVSS technical
    40% · +2.8

    4.0 base 6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

    Patient safety
    35% · +1.8

    Delay of care

    Exploit maturity
    15% · +1.5

    On CISA KEV (in-the-wild)

    MedTech exposure
    10% · +0.5

    5/10 network-reachable signals

    How we got to 6.5

    1. 1
      CVSS technical severity (40%)

      Industry-standard exploitability + impact score. We prefer CVSS 4.0 and fall back to 3.1 per the FDA's Feb 2026 premarket cybersecurity guidance. Missing CVSS scores get a neutral 4.0 so unknown vulns are not over- or under-rated.

      4.0 base 6.9 × 40% = +2.76
    2. 2
      Patient safety impact (35%)

      What happens to a patient if this vuln is exploited on a connected device. Auto-inferred from headline, dek, tags, and device class against a curated MedTech keyword library (pacemaker, infusion pump, EHR, PACS, etc.).

      Delay of care → 5 × 35% = +1.75
    3. 3
      Exploit maturity (15%)

      Is anyone actually using this in attacks? KEV listing > weaponized exploit > public PoC > none. KEV alone forces tier=critical regardless of CVSS.

      On CISA KEV (in-the-wild) → 10 × 15% = +1.50
    4. 4
      MedTech exposure (10%)

      How likely this affects clinical operations: presence in our MedTech feed (+4 baseline), network-reachable signals (+3), known device-class tags (+2), identified MedTech vendor (+1).

      Exposure 5/10 × 10% = +0.50

    Tier cutoffs: Critical ≥ 8.5 · High 7.0–8.4 · Notable 4.0–6.9 · Info < 4.0. Full methodology, weights, and changelog at /goatfeed/risk-rubric.

    Citations
    • CISA Known Exploited Vulnerabilities
    • Methodology and sources →
    #kev#cve#arista
    Need help acting on this?

    Talk to Blue Goat Cyber

    Penetration testing, SBOM, threat modeling, and 524B submission support for MedTech.

    Talk to usSee services