Windows 10/11 ↗
Summary iPlain-English security verdict for Windows 10/11, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
Windows 10/11 currently scores 85/100 — good. 1 actively-exploited vulnerability (CISA KEV) affects older releases (e.g. CVE-2021-40449) — staying on the latest supported version keeps you clear of it. The latest supported release is 10.0.28000. 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 Windows 10/11 each year (NVD). A higher bar means more disclosures that year — more scrutiny, not necessarily less safe.
⚠ 1 of its known vulnerability is 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-2021-40449 HIGH ● exploited ⚠ ransomware Use-after-free EPSS 92% → fixed in 10.0.22000.258 CVE-2022-26809 CRITICAL EPSS 93% → see advisory CVE-2022-21907 CRITICAL EPSS 92% → see advisory CVE-2022-34718 CRITICAL EPSS 85% → see advisory CVE-2023-21768 HIGH CWE-822 EPSS 74% → see advisory CVE-2022-30216 HIGH Unrestricted file upload EPSS 60% → see advisory CVE-2022-44666 HIGH EPSS 55% → see advisory CVE-2023-21746 HIGH EPSS 54% → see advisory CVE-2022-21972 HIGH EPSS 49% → see advisory CVE-2022-23270 HIGH EPSS 48% → see advisory CVE-2022-24500 HIGH EPSS 45% → see advisory CVE-2023-21758 HIGH CWE-476 EPSS 43% → 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 Windows 10/11 release line is supported — and when it sunsets.
ℹ product-level posture (last 365d); exact per-version verdict pending precise version mapping