Patch tracker / CVE reference / CVE-2024-43637

CVE-2024-43637

CVE-2024-43637 is a Microsoft vulnerability that Microsoft rates Important, with a CVSS score of 6.8 (Medium). Its EPSS score puts the probability of exploitation in the next 30 days at 85%. Microsoft has shipped the fix: deploy one of the 16 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.

Risk summary

Medium
6.8
CVSS v3
85%
EPSS, 30 days
Medium
Severity

Not in the CISA KEV catalog. EPSS exploit probability 85%. CVSS 6.8 (Medium).

This CVE is among the top 5% of tracked Microsoft CVEs by EPSS exploit probability.

Senserva AI Opinion for CVE-2024-43637

This is an elevation of privilege flaw in the Windows USB Video Class system driver, the component that handles webcams and other USB video hardware. The unusual pairing here is a Critical rating with CVSS 9.8 plus an 82 percent EPSS exploit probability, which is high for a driver bug that typically requires local device interaction. Exposure is limited to Windows 10 Version 1809 (32-bit and x64) and Windows Server 2019.

Do this: Apply the Microsoft patch for CVE-2024-43637 to all Windows 10 1809 and Server 2019 hosts, prioritizing systems where users connect USB video devices.

AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for CVE-2024-43637

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

Patch this cycle
Not confirmed exploited yet, but the 30-day exploit probability is high (EPSS 85%).
Fixed by KB5046612 and 15 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-2024-43637

High priority: EPSS puts the odds of near-term exploitation high. In Intune or Defender, confirm whether the fixing updates KB5046612, KB5046613, KB5046615, KB5046616, KB5046617, KB5046618, KB5046633, KB5046639, KB5046661, KB5046665, KB5046682, KB5046687, KB5046696, KB5046697, KB5046698, KB5046705 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-2024-43637. 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.

KB5046612KB5046613KB5046615KB5046616KB5046617KB5046618KB5046633KB5046639KB5046661KB5046665KB5046682KB5046687KB5046696KB5046697KB5046698KB5046705

Scope and sources

Affected products
Fixed by the same updates
CVE-2024-49039CVE-2024-43451CVE-2024-43639CVE-2024-43620CVE-2024-43621CVE-2024-43622CVE-2024-43624CVE-2024-43627
Authoritative references
Official CVE record (cve.org)NVD detailMicrosoft MSRCFIRST.org EPSS

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

New to a term on this page? CVE, KB, KEV, CVSS, and EPSS are each explained once, on the Senserva security lexicon. Reference: Microsoft CVE and vulnerability management and the Microsoft patching guide.
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