Mbed TLS ↗
Summary iPlain-English security verdict for Mbed TLS, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
Mbed TLS currently scores 85/100 — good. No tracked vulnerabilities are currently known to be exploited in the wild. It's largely safe; apply minor updates as they appear.
Disclosure trend iNew CVEs published for Mbed TLS 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-2026-34877 CRITICAL CWE-250 EPSS 0% → fixed in 3.6.6Get alerted about Mbed TLS
Be emailed the moment Mbed TLS 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 Mbed TLS — no marketing, no sharing, and we never know what you run. Track your whole stack →
Frequently asked
Is Mbed TLS safe and patched?
Mbed TLS currently scores 85/100 — good. No tracked vulnerabilities are currently known to be exploited in the wild. It's largely safe; apply minor updates as they appear.
What should I do about Mbed TLS now?
Review the patch-priority list, apply the available fixes (or move to the latest release), and confirm against Arm's official advisory.
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 Arm's official advisory before you patch or upgrade — Mbed TLS official site ↗