Patch tracker / CVE reference / CVE-2024-43447
CVE-2024-43447
CVE-2024-43447 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 82%. Microsoft has shipped the fix: deploy one of the 2 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.
Critical severity Microsoft vulnerability, CVSS 9.8. Fixed by 2 Microsoft security updates.
Risk summary
Updated July 24, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.
Senserva AI Opinion for CVE-2024-43447
Windows SMBv3 Server on Windows Server 2022 has a Critical CVSS 9.8 remote code execution flaw with an 82 percent EPSS score. SMB server bugs carry the WannaCry and EternalBlue legacy: file sharing is on by default, reachable across flat networks, and historically the vector for the most destructive worms on record. The narrow affected list, Server 2022 only, makes targeting easy for both defenders and attackers.
Do this: Patch all Server 2022 systems now and confirm SMB port 445 is blocked at the perimeter and segmented internally.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2024-43447
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for CVE-2024-43447
Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.
Exploitation and severity
Not in the CISA KEV catalog. EPSS exploit probability 82%. CVSS 9.8 (Critical).
This CVE is among the top 10% of tracked Microsoft CVEs by EPSS exploit probability.
Official patch(es) for CVE-2024-43447
High priority: EPSS puts the odds of near-term exploitation high. In Intune or Defender, confirm whether the fixing updates KB5046616, KB5046698 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-2024-43447. 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.
Affected products
Common questions about CVE-2024-43447
Is CVE-2024-43447 actively exploited?
It is not currently listed in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score puts the probability of exploitation in the next 30 days at 82%.
What patch fixes CVE-2024-43447?
Microsoft fixed CVE-2024-43447 in KB5046616, KB5046698. Download from the Microsoft Update Catalog, or let Intune, Windows Update, or WSUS deliver it.
Which products are affected by CVE-2024-43447?
Windows 10 Version 21H2 for 32-bit Systems, Windows Server 2022, Windows Server 2022 (Server Core installation).
Can I ask my own AI about CVE-2024-43447?
Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2024-43447's key facts: severity, CVSS, EPSS exploit probability, CISA KEV status, and the fixing KB. Copy it into Claude, ChatGPT, or Copilot for a triage plan; the data is refreshed three times a day (5 AM, 12:30 PM, and 7 PM US Central).
Fixed by the same updates
If you are patching CVE-2024-43447, the same updates also fix these:
Authoritative references
Want every Microsoft CVE and the patches that fix it, ranked by real-world risk? See the Microsoft Patch Tracker.
