Patch tracker / KB5048703
KB5048703: Windows 10 Security Update (December 2024)
KB5048703 is a Critical security update for Windows 10, released 2024-12-10. It closes 22 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-2024-49113, which FIRST.org rates at 84% probability of exploitation in the next 30 days.
Our data comes from Microsoft, CISA and other public sources, and it can be wrong or out of date. If you are unsure, check the linked source before you act, and tell us when we are wrong so we can fix it.
Update summary
Fixes 22 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 10 for 32-bit Systems has shipped since this one: KB5066837 (2025-10-14). 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.
We checked Microsoft's support article for KB5048703 on 2026-10-28 and it lists no known issues. Read the article before broad deployment; Microsoft adds issues as reports come in, and we re-check on every refresh.
A narrower December 10, 2024 build, this update fixes 23 CVEs for Windows 10 Version 1809 and Windows Server 2019, still rated up to Critical at CVSS 9.8 with an 84 percent EPSS score and confirmed CISA KEV status. Its smaller CVE count compared to siblings in the same release means it likely targets a specific language pack or edition rather than the full monthly rollup.
Do this: Check whether this 23-CVE build is the correct package for your specific Windows 10 1809 or Server 2019 edition, or if a fuller rollup applies instead.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for KB5048703
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for KB5048703
- 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 KB5048703 on 2026-10-10: CVEs fixed 23 to 22.
- 2026-10-03 CVEs fixed 23 to 22
- 2026-10-05 CVEs fixed 22 to 23
- 2026-10-10 CVEs fixed 23 to 22
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 KB5048703 is installed
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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-2024-49138 | High | 7.8 | 26% | KEV |
| CVE-2024-49112 | Critical | 9.8 | 72% | No |
| CVE-2024-49080 | High | 8.8 | 1.7% | No |
| CVE-2024-49102 | High | 8.8 | 1.7% | No |
| CVE-2024-49104 | High | 8.8 | 1.7% | No |
| CVE-2024-49105 | High | 8.4 | 1.5% | No |
| CVE-2024-49118 | High | 8.1 | 1.4% | No |
| CVE-2024-49122 | High | 8.1 | 21% | No |
| CVE-2024-49124 | High | 8.1 | 1.4% | No |
| CVE-2024-49126 | High | 8.1 | 1.3% | No |
| CVE-2024-49127 | High | 8.1 | 1.3% | No |
| CVE-2024-49072 | High | 7.8 | <1% | No |
| CVE-2024-49079 | High | 7.8 | <1% | No |
| CVE-2024-49088 | High | 7.8 | 1.0% | No |
| CVE-2024-49090 | High | 7.8 | 1.1% | No |
| CVE-2024-49096 | High | 7.5 | 2.9% | No |
| CVE-2024-49113 | High | 7.5 | 84% | No |
| CVE-2024-49121 | High | 7.5 | 2.4% | No |
| CVE-2024-49107 | High | 7.3 | 1.9% | No |
| CVE-2024-49089 | High | 7.2 | 2.1% | No |
| CVE-2024-49084 | High | 7.0 | <1% | No |
| CVE-2024-49082 | Medium | 6.8 | 1.5% | No |
Scope and sources
- Affected products
- Also released in December 2024
KB5048652
45 CVEs · Critical · exploitedKB5048653
55 CVEs · Critical · exploitedKB5048654
40 CVEs · Critical · exploitedKB5048661
54 CVEs · Critical · exploitedKB5048667
56 CVEs · Critical · exploitedKB5048671
31 CVEs · Critical · exploitedKB5048676
23 CVEs · Critical · exploitedKB5048685
45 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.