VMware ESXi ↗
Summary iPlain-English security verdict for VMware ESXi, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
VMware ESXi currently scores 85/100 — good. 8 actively-exploited vulnerabilities (CISA KEV) affect older releases (e.g. CVE-2023-29552) — staying on the latest supported version keeps you clear of them. The latest supported release is 9.1.0.0. It's largely safe; apply minor updates as they appear. 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 VMware ESXi each year (NVD). A higher bar means more disclosures that year — more scrutiny, not necessarily less safe.
⚠ 4 of its known vulnerabilities are linked to ransomware campaigns (CISA KEV).
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-2023-29552 HIGH ● exploited EPSS 92% → fixed in 7.0 CVE-2019-5544 CRITICAL ● exploited ⚠ ransomware Out-of-bounds write EPSS 92% → see advisory CVE-2020-3992 CRITICAL ● exploited ⚠ ransomware Use-after-free EPSS 90% → see advisory CVE-2024-37085 MEDIUM ● exploited ⚠ ransomware Improper authentication EPSS 80% → see advisory CVE-2025-22224 CRITICAL ● exploited CWE-367 EPSS 47% → see advisory CVE-2025-22225 HIGH ● exploited ⚠ ransomware Out-of-bounds write EPSS 10% → see advisory CVE-2025-22226 HIGH ● exploited Out-of-bounds read EPSS 4% → see advisory CVE-2010-3904 HIGH ● exploited CWE-1284 EPSS 2% → see advisory CVE-2017-5753 MEDIUM CWE-203 EPSS 94% → see advisory CVE-2021-21974 HIGH Out-of-bounds write EPSS 56% → see advisory CVE-2010-0211 CRITICAL CWE-252 EPSS 43% → see advisory CVE-2012-1516 CRITICAL Memory corruption EPSS 2% → see advisoryVersions & lifecycle iWhen each release line stops receiving security patches (end-of-life). After EOL there are no more fixes — plan upgrades before these dates.
How long each VMware ESXi release line is supported — and when it sunsets.
ℹ product-level posture (last 365d); exact per-version verdict pending precise version mapping