Internet Explorer ↗
Internet Explorer is retired and out of support; assessed at the product level from historical CVE data.
Summary iPlain-English security verdict for Internet Explorer, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
Internet Explorer currently scores 20/100 — critical, with active exploitation. 4 of its known vulnerabilities are being actively exploited in the wild (CISA KEV), including CVE-2019-0752. Upgrade immediately and review your exposure to the actively-exploited CVEs below.
Disclosure trend iNew CVEs published for Internet Explorer each year (NVD). A higher bar means more disclosures that year — more scrutiny, not necessarily less safe.
3 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-2019-0752 HIGH exploited ransomware CWE-843 EPSS 82% → see advisory CVE-2021-26411 HIGH exploited ransomware Use-after-free EPSS 81% → see advisory CVE-2016-3351 MEDIUM exploited ransomware EPSS 26% → see advisory CVE-2021-27085 HIGH exploited EPSS 4% → see advisorySee all 11 known Internet Explorer CVEs & security history →
Get alerted about Internet Explorer
Be emailed the moment Internet Explorer gets a newly exploited vulnerability (CISA KEV) or a release reaches end of life. Free · double opt-in · unsubscribe anytime.
We email only on real events for Internet Explorer — no marketing, no sharing, and we never know what you run. Track your whole stack →
Frequently asked
Is Internet Explorer safe and patched?
Internet Explorer currently scores 20/100 — critical, with active exploitation. 4 of its known vulnerabilities are being actively exploited in the wild (CISA KEV), including CVE-2019-0752. Upgrade immediately and review your exposure to the actively-exploited CVEs below.
What should I do about Internet Explorer now?
Review the patch-priority list, apply the available fixes (or move to the latest release), and confirm against Microsoft's official advisory. Some issues are under active exploitation, so treat this as urgent.
lifecycle unknown — needs latest supported version
Informational only, from public data (NVD · CISA KEV · EPSS · endoflife.date), and can lag or miss vendor-specific fixes. Always confirm against Microsoft's official advisory before you patch or upgrade — Internet Explorer official site ↗