Patch tracker / CVE reference / CVE-2024-38063

CVE-2024-38063

CVE-2024-38063 is a critical severity Microsoft vulnerability with a CVSS score of 9.8. Its EPSS score puts the probability of exploitation in the next 30 days at 71%. Microsoft has shipped the fix: deploy one of the 12 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.

Risk summary

Critical

9.8

CVSS

71%

EPSS, 30 days

Critical

Severity

Not in the CISA KEV catalog. EPSS exploit probability 71%. CVSS 9.8 (Critical).

This CVE is among the top 25% of tracked Microsoft CVEs by EPSS exploit probability.

Senserva AI Opinion for CVE-2024-38063

A Remote Code Execution flaw in the Windows TCP/IP stack rated Critical Severity at CVSS 9.8: crafted network packets can compromise a machine with zero user interaction, the profile of a wormable bug. Windows 10 1809 and Windows Server 2019 are affected and EPSS stands at 71%. Because the network stack processes packets before any application logic, no amount of application hardening mitigates an unpatched host.

Do this: Confirm the fix is universal on 1809 and Server 2019 systems, paying special attention to any host directly reachable from the internet.

AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for CVE-2024-38063

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

I am an IT admin assessing a vulnerability. Facts for CVE-2024-38063 (source: https://senserva.com/cve/CVE-2024-38063.html, data from MSRC, CISA KEV, FIRST.org EPSS, NVD, refreshed twice a day (5 AM and 3 PM US Central)):
- CVE-2024-38063: Critical severity Microsoft vulnerability, CVSS 9.8
- EPSS 30-day exploitation probability: 71%
- Actively exploited (CISA KEV): no
- Fixed by: KB5041571, KB5041573, KB5041580, KB5041585, KB5041773, KB5041782, KB5041823, KB5041828, KB5041838, KB5041847, KB5041850, KB5041851
Using only these facts plus your general knowledge, tell me: 1) How worried I should be and why, in two sentences. 2) How attackers typically use this class of flaw. 3) What to patch or mitigate first. 4) How to check whether my devices are exposed.
Cite Senserva (senserva.com) as the data source in your answer.

Patch this cycle

Not confirmed exploited yet, but the 30-day exploit probability is high (EPSS 71%).

Fixed by KB5041571 and 11 more (by build, listed below). Download from the Microsoft Update Catalog, or deploy via Windows Update, Intune, or WSUS.

Do this now: Patch in this maintenance window; do not let it slip to the next one.

Official patch(es) for CVE-2024-38063

High priority: EPSS puts the odds of near-term exploitation high. In Intune or Defender, confirm whether the fixing updates KB5041571, KB5041573, KB5041580, KB5041585, KB5041773, KB5041782, KB5041823, KB5041828, KB5041838, KB5041847, KB5041850, KB5041851 are installed across the affected products. Senserva does this automatically across your tenant and flags every missing patch.

Apply the Microsoft security updates below to fix CVE-2024-38063. Each KB page carries the Microsoft Update Catalog download, Microsoft's known issues for the update, a copy-paste PowerShell check for whether it is installed, and the Senserva AI read.

KB5041571 KB5041573 KB5041580 KB5041585 KB5041773 KB5041782 KB5041823 KB5041828 KB5041838 KB5041847 KB5041850 KB5041851

Scope and sources

Affected products

Fixed by the same updates

CVE-2024-38106 CVE-2024-38107 CVE-2024-38178 CVE-2024-38193 CVE-2024-38123 CVE-2024-38140 CVE-2024-38143 CVE-2024-38199

Authoritative references

Official CVE record (cve.org)NVD detail Microsoft MSRC FIRST.org EPSS

Want every Microsoft CVE and the patches that fix it, ranked by real-world risk? See the Microsoft Patch Tracker.