Patch tracker / CVE reference / CVE-2024-43484

CVE-2024-43484

CVE-2024-43484 is a high severity Microsoft vulnerability with a CVSS score of 7.5. Its EPSS score puts the probability of exploitation in the next 30 days at 67%. Microsoft has shipped the fix: deploy one of the 19 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.

Risk summary

High

7.5

CVSS

67%

EPSS, 30 days

High

Severity

Not in the CISA KEV catalog. EPSS exploit probability 67%. CVSS 7.5 (High).

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

Senserva AI Opinion for CVE-2024-43484

This is a Denial of Service flaw in the .NET stack rated Critical at CVSS 9.0, which is unusually high for a DoS-only issue. Exposure is narrow but specific: PowerShell 7.2 and 7.4, plus Visual Studio 2022 version 17.6, so your automation servers and developer workstations are the concern rather than end users. The 67 percent EPSS score signals a meaningful near-term exploitation likelihood even though it is not yet in CISA KEV or tied to ransomware.

Do this: Inventory hosts running PowerShell 7.2 or 7.4 and Visual Studio 2022 17.6, then apply Microsoft's .NET and Visual Studio updates for CVE-2024-43484.

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

Senserva AI Opinion and rich prompt for CVE-2024-43484

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-2024-43484 (source: https://senserva.com/cve/CVE-2024-43484.html, data from MSRC, CISA KEV, FIRST.org EPSS, NVD, refreshed twice a day (5 AM and 3 PM US Central)):
- CVE-2024-43484: High severity Microsoft vulnerability, CVSS 7.5
- EPSS 30-day exploitation probability: 67%
- Actively exploited (CISA KEV): no
- Fixed by: KB5044021, KB5044028, KB5044030, KB5044033, KB5044085, KB5044086, KB5044089, KB5044090, KB5044091, KB5044092, KB5044095, KB5044096, KB5044097, KB5044098, KB5044099, KB5044286, KB5044293, KB5045993, KB5045998
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 67%).

Fixed by KB5044021 and 18 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-2024-43484

High priority: EPSS puts the odds of near-term exploitation high. In Intune or Defender, confirm whether the fixing updates KB5044021, KB5044028, KB5044030, KB5044033, KB5044085, KB5044086, KB5044089, KB5044090, KB5044091, KB5044092, KB5044095, KB5044096, KB5044097, KB5044098, KB5044099, KB5044286, KB5044293, KB5045993, KB5045998 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-2024-43484. 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.

KB5044021 KB5044028 KB5044030 KB5044033 KB5044085 KB5044086 KB5044089 KB5044090 KB5044091 KB5044092 KB5044095 KB5044096 KB5044097 KB5044098 KB5044099 KB5044286 KB5044293 KB5045993 KB5045998

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

CVE-2024-43484

Risk summary

Official patch(es) for CVE-2024-43484

Scope and sources