Patch tracker / CVE reference / CVE-2024-43456
CVE-2024-43456
CVE-2024-43456 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 8 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 9.0. Fixed by 8 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-2024-43456
CVE-2024-43456 is a Critical (CVSS 9.0) tampering flaw in Windows Remote Desktop Services affecting Windows Server 2019 (including Server Core) and Windows Server 2022. What stands out is the 67 percent EPSS score paired with a tampering class bug: RDS tampering can let an attacker alter session or authentication data rather than just read it, and any server exposing RDS to reachable networks is in scope. It is not in CISA KEV and has no confirmed ransomware use yet, but the exploit probability is high enough to treat as near term.
Do this: Apply Microsoft's patch to all Windows Server 2019 and 2022 hosts running Remote Desktop Services, prioritizing any internet-facing RDS gateways.
AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2024-43456
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for CVE-2024-43456
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 25% of tracked Microsoft CVEs by EPSS exploit probability.
Official patch(es) for CVE-2024-43456
High priority: EPSS puts the odds of near-term exploitation high. In Intune or Defender, confirm whether the fixing updates KB5044277, KB5044281, KB5044288, KB5044293, 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-2024-43456. 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-2024-43456
Is CVE-2024-43456 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-2024-43456?
Microsoft fixed CVE-2024-43456 in KB5044277, KB5044281, KB5044288, KB5044293, 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-2024-43456?
Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022.
Can I ask my own AI about CVE-2024-43456?
Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2024-43456'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-2024-43456, 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.
