Microsoft Office ↗
Desktop Office (Word, Excel, Outlook, PowerPoint). Microsoft 365 apps auto-update; perpetual Office (2016/2019/2021) is assessed at product level on recent advisories, not a per-version verdict.
Summary iPlain-English security verdict for Microsoft Office, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
Microsoft Office currently scores 0/100 — critical, with active exploitation. 36 of its known vulnerabilities are being actively exploited in the wild (CISA KEV), including CVE-2012-0158. Upgrade immediately and review your exposure to the actively-exploited CVEs below.
Disclosure trend iNew CVEs published for Microsoft Office 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-2012-0158 HIGH exploited Code injection EPSS 100% → see advisory CVE-2017-11882 HIGH exploited ransomware Memory corruption EPSS 100% → see advisory CVE-2017-0199 HIGH exploited ransomware EPSS 100% → see advisory CVE-2023-23397 CRITICAL exploited Improper input validation EPSS 97% → see advisory CVE-2015-1641 HIGH exploited Out-of-bounds write EPSS 97% → see advisory CVE-2018-0798 HIGH exploited Out-of-bounds write EPSS 95% → see advisory CVE-2018-0802 HIGH exploited Out-of-bounds write EPSS 93% → see advisory CVE-2017-8570 HIGH exploited EPSS 90% → see advisory CVE-2010-3333 HIGH exploited Out-of-bounds write EPSS 89% → see advisory CVE-2015-2545 HIGH exploited EPSS 86% → see advisory CVE-2009-3129 HIGH exploited Out-of-bounds write EPSS 86% → see advisory CVE-2013-3906 HIGH exploited Code injection EPSS 85% → see advisorySee all 1031 known Microsoft Office CVEs & security history →
How to patch Microsoft Office — step-by-step to the latest secure version →
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Frequently asked
Is Microsoft Office safe and patched?
Microsoft Office currently scores 0/100 — critical, with active exploitation. 36 of its known vulnerabilities are being actively exploited in the wild (CISA KEV), including CVE-2012-0158. Upgrade immediately and review your exposure to the actively-exploited CVEs below.
What should I do about Microsoft Office 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 — Microsoft Office official site ↗