ONLYOFFICE Docs ↗
Summary iPlain-English security verdict for ONLYOFFICE Docs, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
ONLYOFFICE Docs currently scores 20/100 — critical, with active exploitation. 1 of its known vulnerability is being actively exploited in the wild (CISA KEV), including CVE-2021-3199. Upgrade immediately and review your exposure to the actively-exploited CVEs below.
Disclosure trend iNew CVEs published for ONLYOFFICE Docs 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-2021-3199 CRITICAL exploited Path traversal EPSS 15% → fixed in 5.6.3 CVE-2023-30187 CRITICAL Out-of-bounds write EPSS 2% → see advisory CVE-2023-30186 CRITICAL Use-after-free EPSS 2% → see advisoryGet alerted about ONLYOFFICE Docs
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Frequently asked
Is ONLYOFFICE Docs safe and patched?
ONLYOFFICE Docs currently scores 20/100 — critical, with active exploitation. 1 of its known vulnerability is being actively exploited in the wild (CISA KEV), including CVE-2021-3199. Upgrade immediately and review your exposure to the actively-exploited CVEs below.
What should I do about ONLYOFFICE Docs now?
Review the patch-priority list, apply the available fixes (or move to the latest release), and confirm against ONLYOFFICE's official advisory. Some issues are under active exploitation, so treat this as urgent.
Similar software we track
Other Office products — compare their security status.
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 ONLYOFFICE's official advisory before you patch or upgrade — ONLYOFFICE Docs official site ↗