# Eos vulnerabilities > Eos is made by Arista. We track 45 published vulnerabilities in it, across 227 versions. 3 of them are on the list of flaws known to be exploited, the newest added on 9 June 2026. If you run Eos, check your version against the exploited flaws below and patch those first. Canonical page: https://www.precursorintelligence.com/product/arista/eos ## At a glance - **Made by:** [Arista](https://www.precursorintelligence.com/vendors/arista) - **Published vulnerabilities:** 45 - **Known to be exploited:** 3 - **Versions tracked:** 227 - **Most recently added to the known-exploited list:** [CVE-2026-7473](https://www.precursorintelligence.com/what-is/cve-2026-7473), 9 June 2026. We keep watching the list. ## Which versions of Eos do the exploited flaws hit? Each exploited flaw lists the versions it affects, as published. "4.9.0 to before 4.9.12" means from 4.9.0 up to, but not including, 4.9.12. - [CVE-2026-7473](https://www.precursorintelligence.com/what-is/cve-2026-7473) (Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability): all versions - [CVE-2014-6271](https://www.precursorintelligence.com/what-is/cve-2014-6271) (GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability): 4.9.0 to before 4.9.12, 4.10.0 to before 4.10.9, 4.11.0 to before 4.11.11, 4.12.0 to before 4.12.9, 4.13.0 to before 4.13.9, 4.14.0 to before 4.14.4f - [CVE-2014-7169](https://www.precursorintelligence.com/what-is/cve-2014-7169) (GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability): 4.9.0 to before 4.9.12, 4.10.0 to before 4.10.9, 4.11.0 to before 4.11.11, 4.12.0 to before 4.12.9, 4.13.0 to before 4.13.9, 4.14.0 to before 4.14.4f ## Which Eos vulnerabilities are being exploited? 3 flaws are on the government list of vulnerabilities known to be exploited, newest first: - [CVE-2026-7473](https://www.precursorintelligence.com/what-is/cve-2026-7473): Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability. Medium, CVSS 6.9, chance of use in 30 days 0.6%, known exploited since 9 June 2026. - [CVE-2014-6271](https://www.precursorintelligence.com/what-is/cve-2014-6271): GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability. Critical, CVSS 9.8, chance of use in 30 days >99%, known exploited since 28 January 2022. - [CVE-2014-7169](https://www.precursorintelligence.com/what-is/cve-2014-7169): GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability. Critical, CVSS 9.8, chance of use in 30 days >99%, known exploited since 28 January 2022. ## Which Eos flaws are most likely to be used? Ranked by the latest exploit-likelihood forecast (the chance each flaw is used in an attack in the next 30 days): - [CVE-2014-6271](https://www.precursorintelligence.com/what-is/cve-2014-6271): >99%, Critical (CVSS 9.8), known exploited - [CVE-2014-7169](https://www.precursorintelligence.com/what-is/cve-2014-7169): >99%, Critical (CVSS 9.8), known exploited - [CVE-2024-6387](https://www.precursorintelligence.com/what-is/cve-2024-6387): >99%, High (CVSS 8.1) - [CVE-2017-14491](https://www.precursorintelligence.com/what-is/cve-2017-14491): 85%, Critical (CVSS 9.8) - [CVE-2020-10188](https://www.precursorintelligence.com/what-is/cve-2020-10188): 74%, Critical (CVSS 9.8) - [CVE-2017-18017](https://www.precursorintelligence.com/what-is/cve-2017-18017): 53%, Critical (CVSS 9.8) - [CVE-2015-5165](https://www.precursorintelligence.com/what-is/cve-2015-5165): 13%, Critical (CVSS 9.3) - [CVE-2015-3209](https://www.precursorintelligence.com/what-is/cve-2015-3209): 9.7%, High (CVSS 7.5) - [CVE-2019-17596](https://www.precursorintelligence.com/what-is/cve-2019-17596): 4.7%, High (CVSS 7.5) ## Questions ### How many vulnerabilities does Eos have? We track 45 published vulnerabilities listed under the name Eos, across 227 versions. The most recent Eos flaw added to the known-exploited list is CVE-2026-7473, on 9 June 2026. ### Which Eos vulnerabilities are being exploited? 3 are on the list of flaws known to be exploited. The most recently added are CVE-2026-7473, CVE-2014-6271 and CVE-2014-7169. ### Which versions of Eos do the exploited flaws affect? Each flaw names its own versions, usually as ranges. The newest, CVE-2026-7473, affects all versions. The versions for every exploited flaw are listed on this page. ### How do I get alerts for Eos? Create a Precursor Intelligence account and track Eos. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook. ## Running Eos? Precursor Intelligence keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.precursorintelligence.com/register Book a demo: https://www.precursorintelligence.com/contact