Patch tracker / CVE reference / CVE-2024-43553
CVE-2024-43553
Critical severity Microsoft vulnerability, CVSS 9.0. Fixed by 15 Microsoft security updates.
All about CVE-2024-43553: the Senserva AI read, whether it is exploited, the official patches, its change history, and the questions admins ask.
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CVE-2024-43553 is a critical severity Microsoft vulnerability with a CVSS score of 9.0. Its EPSS score puts the probability of exploitation in the next 30 days at 67%. Microsoft has shipped the fix: deploy one of the 15 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.
Risk summary
Senserva AI Opinion for CVE-2024-43553
This NT OS Kernel elevation-of-privilege flaw rates Critical 9.0 with a 61 percent EPSS score on Windows 10 1809 and Server 2019. A kernel escalation lets an attacker who already has code running gain SYSTEM-level control, a decisive step in most intrusions. The 61 percent EPSS makes it more likely to be weaponized than the low-EPSS kernel bugs elsewhere. No ransomware link exists.
Do this: Prioritize this kernel update on 1809 and Server 2019 hosts and limit local access where untrusted users could run code.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2024-43553
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for CVE-2024-43553
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 67%. CVSS 9.0 (Critical).
This CVE is among the top half of tracked Microsoft CVEs by EPSS exploit probability.
Official patch(es) for CVE-2024-43553
High priority: EPSS puts the odds of near-term exploitation high. In Intune or Defender, confirm whether the fixing updates KB5044273, KB5044277, KB5044280, KB5044281, KB5044284, KB5044285, KB5044286, KB5044288, KB5044293, KB5044306, KB5044320, KB5044321, KB5044342, KB5044343, KB5044356 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-2024-43553. Each KB page links to the Microsoft Update Catalog download for every affected product.
Affected products
Common questions about CVE-2024-43553
Is CVE-2024-43553 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 67%.
What patch fixes CVE-2024-43553?
Microsoft fixed CVE-2024-43553 in KB5044273, KB5044277, KB5044280, KB5044281, KB5044284, KB5044285, KB5044286, KB5044288, KB5044293, KB5044306, KB5044320, KB5044321, KB5044342, KB5044343, KB5044356. Download from the Microsoft Update Catalog, or let Intune, Windows Update, or WSUS deliver it.
Which products are affected by CVE-2024-43553?
Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022.
Can I ask my own AI about CVE-2024-43553?
Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2024-43553'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-2024-43553, 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.
