Microsoft SharePoint Server ↗
On-premises SharePoint Server only. SharePoint Online (Microsoft 365) is a cloud service patched by Microsoft and is not covered here.
Summary iPlain-English security verdict for Microsoft SharePoint Server, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
Microsoft SharePoint Server currently scores 5/100 — critical, with active exploitation. 15 of its known vulnerabilities are being actively exploited in the wild (CISA KEV), including CVE-2025-53770. The latest supported release is 16.0.19725.20384. Upgrade immediately and review your exposure to the actively-exploited CVEs below. Note: this product is assessed at the product level on recent (365-day) activity rather than an exact per-version match, so it is never marked a confident "healthy".
Disclosure trend iNew CVEs published for Microsoft SharePoint Server each year (NVD). A higher bar means more disclosures that year — more scrutiny, not necessarily less safe.
7 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-2025-53770 CRITICAL exploited ransomware Insecure deserialization EPSS 100% → fixed in 16.0.18526.20508 CVE-2019-0604 CRITICAL exploited ransomware Improper input validation EPSS 100% → see advisory CVE-2025-49704 HIGH exploited ransomware Code injection EPSS 100% → see advisory CVE-2025-49706 MEDIUM exploited ransomware Improper authentication EPSS 100% → fixed in 16.0.18526.20424 CVE-2023-29357 CRITICAL exploited ransomware CWE-303 EPSS 100% → see advisory CVE-2015-1641 HIGH exploited Out-of-bounds write EPSS 97% → see advisory CVE-2020-1147 HIGH exploited EPSS 96% → see advisory CVE-2023-24955 HIGH exploited ransomware Code injection EPSS 85% → see advisory CVE-2012-1889 HIGH exploited Out-of-bounds write EPSS 84% → see advisory CVE-2017-11826 HIGH exploited Memory corruption EPSS 82% → see advisory CVE-2014-1761 HIGH exploited Out-of-bounds write EPSS 78% → see advisory CVE-2024-38094 HIGH exploited ransomware Insecure deserialization EPSS 55% → see advisorySee all 519 known Microsoft SharePoint Server CVEs & security history →
How to patch Microsoft SharePoint Server — step-by-step to the latest secure version →
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Versions & lifecycle iWhen each release line stops receiving security patches (end-of-life). After EOL there are no more fixes — plan upgrades before these dates.
How long each Microsoft SharePoint Server release line is supported — and when it sunsets.
Full Microsoft SharePoint Server end-of-life dates & support timeline →
Frequently asked
Is Microsoft SharePoint Server safe and patched?
Microsoft SharePoint Server currently scores 5/100 — critical, with active exploitation. 15 of its known vulnerabilities are being actively exploited in the wild (CISA KEV), including CVE-2025-53770. The latest supported release is 16.0.19725.20384. Upgrade immediately and review your exposure to the actively-exploited CVEs below. Note: this product is assessed at the product level on recent (365-day) activity rather than an exact per-version match, so it is never marked a confident "healthy".
What should I do about Microsoft SharePoint Server now?
Upgrade Microsoft SharePoint Server to the latest supported release (16.0.19725.20384) or later, which clears the actively-exploited issues affecting older versions, then confirm against Microsoft's official advisory.
When does Microsoft SharePoint Server reach end-of-life?
The latest supported Microsoft SharePoint Server release is 16.0.19725.20384. After end-of-life a release no longer receives security patches.
Which versions of Microsoft SharePoint Server are still receiving security updates?
Supported Microsoft SharePoint Server release lines (latest 16.0.19725.20384): subscription, 2019, 2016. End-of-life releases no longer receive security patches.
product-level posture (last 365d); exact per-version verdict pending precise version mapping
Latest security news for Microsoft SharePoint Server BETA
Attributed third-party reporting linked to Microsoft SharePoint Server — newest first. We surface and link the source; we don’t assert our own findings. About Emerging →
More across all tracked software on the Emerging feed →
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 SharePoint Server official site ↗