Arista EOS network operating system; assessed at product level on recent (365-day) activity, not a per-version verdict.
Summary iPlain-English security verdict for EOS, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
EOS currently scores 20/100 — critical, with active exploitation. 3 of its known vulnerabilities are being actively exploited in the wild (CISA KEV), including CVE-2014-6271. Upgrade immediately and review your exposure to the actively-exploited CVEs below. Note: this product is assessed at the product level on recent (365-day) activity rather than an exact per-version match, so it is never marked a confident "healthy".
Disclosure trend iNew CVEs published for EOS each year (NVD). A higher bar means more disclosures that year — more scrutiny, not necessarily less safe.
Patch priority — what to act on iThe issues to fix first — actively exploited (CISA KEV) first, then by exploitation probability (EPSS), then severity. Each row's "→ fixed in" is the earliest version that patches it; "see advisory" means no fixed version is published.
Most urgent first — actively exploited, then likeliest to be exploited.
CVE-2014-6271 CRITICAL exploited OS command injection EPSS 100% → fixed in 4.14.4f CVE-2014-7169 CRITICAL exploited OS command injection EPSS 100% → fixed in 4.14.4f CVE-2026-7473 MEDIUM exploited CWE-1023 EPSS 0% → see advisory CVE-2024-6387 HIGH CWE-364 EPSS 100% → see advisory CVE-2017-14491 CRITICAL Out-of-bounds write EPSS 85% → fixed in 4.17.8m CVE-2020-10188 CRITICAL Buffer overflow EPSS 75% → see advisory CVE-2017-18017 CRITICAL Use-after-free EPSS 52% → see advisory CVE-2021-28506 CRITICAL CWE-285 EPSS 1% → see advisory CVE-2021-28500 CRITICAL CWE-285 EPSS 1% → fixed in 4.20 CVE-2023-24509 CRITICAL Improper privilege management EPSS 0% → fixed in 4.28.4mGet alerted about EOS
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Frequently asked
Is EOS safe and patched?
EOS currently scores 20/100 — critical, with active exploitation. 3 of its known vulnerabilities are being actively exploited in the wild (CISA KEV), including CVE-2014-6271. Upgrade immediately and review your exposure to the actively-exploited CVEs below. Note: this product is assessed at the product level on recent (365-day) activity rather than an exact per-version match, so it is never marked a confident "healthy".
What should I do about EOS now?
Review the patch-priority list, apply the available fixes (or move to the latest release), and confirm against Arista's official advisory. Some issues are under active exploitation, so treat this as urgent.
product-level posture (last 365d); exact per-version verdict pending precise version mapping
Informational only, from public data (NVD · CISA KEV · EPSS · endoflife.date), and can lag or miss vendor-specific fixes. Always confirm against Arista's official advisory before you patch or upgrade — EOS official site ↗