Patch tracker / KB5048654
KB5048654: Windows Server 2022 Security Update (December 2024)
KB5048654 is a Critical security update for Windows Server 2022, released 2024-12-10. It closes 40 CVEs with a maximum CVSS of 9.8. At least one of them is actively exploited (CISA KEV), so this is a deploy-first update. The most likely of them to be attacked is CVE-2024-49084, which FIRST.org rates at 84% probability of exploitation in the next 30 days.
Update summary
Fixes 40 CVEs. At least one is actively exploited (CISA KEV). Most severe CVSS 9.8 (Critical). EPSS exploit probability up to 84%. Among the top 10% of tracked Microsoft updates by EPSS exploit probability.
A newer security update for Windows Server 2022 has shipped since this one: KB5126655 (2026-10-13). 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.
Microsoft documents 1 known issue with this update.
- |
Covering 41 CVEs, this December 10, 2024 update for Windows 10 Version 1809 and Windows Server 2019 is a smaller cousin of the larger 55 to 58 CVE builds in the same wave, but still carries the same Critical, CVSS 9.8, 84 percent EPSS, confirmed CISA KEV profile. Systems on this build alone may be missing fixes present in the larger packages.
Do this: Cross-check this 41-CVE build against the fuller December 2024 packages to confirm no CVE gap remains on affected systems.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for KB5048654
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for KB5048654
- Released
- 2024-12-10
- Last changed
- 2026-10-10
- Changes tracked
- 13
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.
Microsoft revised KB5048654 on 2026-10-10: CVEs fixed 41 to 40.
- 2026-10-03 CVEs fixed 41 to 40
- 2026-10-05 CVEs fixed 40 to 41
- 2026-10-10 CVEs fixed 41 to 40
Recorded by Senserva on the dates shown, from the MSRC release feed. This is what moved and when, which neither the vendor advisory nor NVD publishes.
Check if KB5048654 is installed
Elevated PowerShell. No output means it is not installed.
Known issues, from Microsoft
Quoted from Microsoft's support article for KB5048654 (checked 2026-10-10). Verify against the article before acting.
|
| Symptom
| Workaround
| Following the installation of the October 2024 security update, some customers report that the OpenSSH (Open Secure Shell) service fails to start, preventing SSH connections. The service fails with no detailed logging, and manual intervention is required to run the sshd.exe process.This issue is affecting both enterprise, IOT, and education customers, with a limited number of devices impacted. Microsoft is investigating whether consumer customers using Home or Pro editions of Windows are affected.
| This issue is addressed in KB5053603 .
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.
Scope and sources
- Affected products
- Also released in December 2024
KB5048652
45 CVEs · Critical · exploitedKB5048653
55 CVEs · Critical · exploitedKB5048661
54 CVEs · Critical · exploitedKB5048667
56 CVEs · Critical · exploitedKB5048671
31 CVEs · Critical · exploitedKB5048676
23 CVEs · Critical · exploitedKB5048685
45 CVEs · Critical · exploitedKB5048695
23 CVEs · Critical · exploitedThe full month, summarized: Microsoft Patch Tuesday.
- Authoritative references
See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.