{"answers":{"affected":"It affects 1 product.","exploited":"Yes. Attackers have exploited CVE-2026-7473 in the wild since at least 9 Jun 2026.","fix":"No fix has been published for CVE-2026-7473 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 23 Jun 2026.","what":"CVE-2026-7473 is a medium-severity vulnerability in Arista Networks EOS, published on 5 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-7473 and fix it if it is affected.\n\nWhat it is: CVE-2026-7473 is a medium-severity vulnerability in Arista Networks EOS, published on 5 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2026-7473 in the wild since at least 9 Jun 2026.\n\nAffected product: Arista Networks EOS. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-7473/ (Markdown: https://insights.sbomify.com/CVE-2026-7473/index.md)","id":"CVE-2026-7473","markdown":"https://insights.sbomify.com/CVE-2026-7473/index.md","name":"CVE-2026-7473","record":{"aliases":["GHSA-mcx4-vm6v-r473"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Arista EOS switch","requires_auth":"none","summary":"Attackers can bypass tunnel decapsulation controls on Arista EOS switches by sending unexpected tunnel protocols, leading to unauthorized packet forwarding.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Arista","cpe":[{"product":"eos","vendor":"arista"}],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"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","version":"4.0"},"cwes":[{"id":"CWE-1023","name":"Incomplete Comparison with Missing Factors"}],"description":"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.\n\nThis issue has been reported as being exploited in the wild.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-06-10","github_poc":1,"max_poc_stars":1,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-06-10T16:21:10Z","kind":"github_poc","ref":"https://github.com/fevar54/CVE-2026-7473---Arista-EOS-Tunnel-Decapsulation-Bypass","stars":1,"title":"PoC de CVE-2026-7473: bypass de decapsulacion de tunel en Arista EOS."}],"tier":"exploited"},"has_fix":null,"headline":"Arista Extensible Operating System Incomplete Comparison with Missing Factors","id":"CVE-2026-7473","indexable":true,"kev":{"dateAdded":"2026-06-09","dueDate":"2026-06-23","knownRansomwareCampaignUse":"Unknown","product":"Extensible Operating System","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","vendorProject":"Arista","vulnerabilityName":"Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Nomad vulnerable to path traversal in dynamic host volume which may lead to code execution","id":"CVE-2026-7474"},"packages":[],"prev":{"headline":"Read More \u0026 Accordion \u003c= 3.5.7 - Authenticated (Administrator+) SQL Injection via 'orderby' Parameter","id":"CVE-2026-7472"},"products":["EOS"],"published":"2026-06-05","related":[{"cvss_score":10,"headline":"Privilege escalation in n/a","id":"CVE-2015-8236","kev_date_added":null,"published":"2015-11-19"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2020-10188","kev_date_added":null,"published":"2020-03-06"},{"cvss_score":9.8,"headline":"Use after free in n/a","id":"CVE-2017-18017","kev_date_added":null,"published":"2018-01-03"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2017-14491","kev_date_added":null,"published":"2017-10-02"},{"cvss_score":9.3,"headline":"Privilege escalation in Arista EOS","id":"CVE-2023-24509","kev_date_added":null,"published":"2023-04-13"},{"cvss_score":9.3,"headline":"Information disclosure in n/a","id":"CVE-2015-5165","kev_date_added":null,"published":"2015-08-12"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-07","vendors":["Arista Networks"]},"summary":"Attackers can bypass tunnel decapsulation controls on Arista EOS switches by sending unexpected tunnel protocols, leading to unauthorized packet forwarding.","url":"https://insights.sbomify.com/CVE-2026-7473/"}