Summary iPlain-English security verdict for OS X, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
OS X currently scores 0/100 — critical, with active exploitation. 30 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.
Disclosure trend iNew CVEs published for OS X 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 10.10.0 CVE-2012-1823 CRITICAL exploited Command injection EPSS 100% → fixed in 10.8.2 CVE-2014-7169 CRITICAL exploited OS command injection EPSS 100% → fixed in 10.10.0 CVE-2014-0497 CRITICAL exploited CWE-191 EPSS 100% → see advisory CVE-2011-0611 HIGH exploited CWE-843 EPSS 99% → see advisory CVE-2015-0313 CRITICAL exploited Use-after-free EPSS 96% → see advisory CVE-2013-0625 CRITICAL exploited Improper authentication EPSS 94% → see advisory CVE-2012-0754 HIGH exploited Out-of-bounds write EPSS 92% → see advisory CVE-2013-0640 HIGH exploited Out-of-bounds write EPSS 87% → see advisory CVE-2011-2462 CRITICAL exploited Out-of-bounds write EPSS 86% → see advisory CVE-2015-0311 CRITICAL exploited EPSS 86% → see advisory CVE-2009-3953 HIGH exploited Out-of-bounds write EPSS 84% → see advisoryGet alerted about OS X
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Frequently asked
Is OS X safe and patched?
OS X currently scores 0/100 — critical, with active exploitation. 30 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.
What should I do about OS X now?
Review the patch-priority list, apply the available fixes (or move to the latest release), and confirm against Apple's official advisory. Some issues are under active exploitation, so treat this as urgent.
Why is OS X listed on IsItPatched?
OS X was added automatically because CISA's Known Exploited Vulnerabilities (KEV) catalog flagged it as actively exploited in the wild. IsItPatched tracks its known CVEs, severity (CVSS), exploitation probability (EPSS) and KEV status from public data; its version and lifecycle mapping is verified over time.
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 Apple's official advisory before you patch or upgrade.