Patch tracker / KB5002676
KB5002676: Microsoft SharePoint Server 2019 Security Update (January 2025)
KB5002676 is a High security update for Microsoft SharePoint Server 2019, released 2025-01-14. It closes 3 CVEs with a maximum CVSS of 7.8. It is the 17th largest of the 44 updates Microsoft shipped that month, by CVEs closed.
Update summary
Fixes 3 CVEs. Most severe CVSS 7.8 (High). EPSS exploit probability up to 1.8%. Among the lower half of tracked Microsoft updates by EPSS exploit probability.
A newer security update for Microsoft SharePoint Enterprise Server 2016 has shipped since this one: KB5002882 (2026-08-11). For cumulative update families the newer package includes these fixes, so installing that one is usually the shorter path. Verify against your own update rings before you skip this package.
CVE-2025-21344, CVE-2025-21348, and CVE-2025-21393, all Severity High at CVSS 7.8, are the three flaws this January SharePoint package resolves across the 2016, 2019, and Subscription Edition branches. This closes out the set of sibling KBs released for the January cycle. Confirm no farm server has been skipped across the various language-edition packages before considering the cycle complete.
Do this: Audit the full SharePoint farm to confirm every server received one of the January sibling packages.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for KB5002676
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for KB5002676
- Released
- 2025-01-14
- Last changed
- 2026-07-29
- Changes tracked
- 3
Senserva began recording day-to-day change history on 2026-07-07, and refreshes it several times a day. Release dates are historical where Microsoft publishes them; revision history is tracked from that date forward, so it does not include changes made before then.
Check if KB5002676 is installed
Elevated PowerShell. No output means it is not installed.
CVEs fixed by this update
Sorted exploited-first, then by CVSS. Every CVE links to its Senserva page with the full risk facts, references, and a ready-to-paste AI prompt.
| CVE | Severity | CVSS | EPSS | Exploited |
|---|---|---|---|---|
| CVE-2025-21344 | High | 7.8 | 1.8% | No |
| CVE-2025-21348 | High | 7.2 | 1.8% | No |
| CVE-2025-21393 | Medium | 6.3 | 1.8% | No |
Scope and sources
- Affected products
- Also released in January 2025
KB5049981
121 CVEs · Critical · exploitedKB5049984
128 CVEs · Critical · exploitedKB5050009
128 CVEs · Critical · exploitedKB5050021
121 CVEs · Critical · exploitedKB5049983
122 CVEs · CriticalKB5049993
112 CVEs · CriticalKB5050004
93 CVEs · CriticalKB5050006
71 CVEs · CriticalThe full month, summarized: Microsoft Patch Tuesday.
- Authoritative references
See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.