Patch tracker / CVE reference / CVE-2025-29824
CVE-2025-29824
CVE-2025-29824 is a high severity Microsoft vulnerability with a CVSS score of 7.8. It is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it in the wild, including in ransomware campaigns, which makes it a fix-first item. Microsoft has shipped the fix: deploy one of the 14 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.
Risk summary
Listed in the CISA Known Exploited Vulnerabilities catalog, confirmed exploited in the wild. EPSS exploit probability 14%. CVSS 7.8 (High). Linked to ransomware activity.
This CVE is among the lower half of tracked Microsoft CVEs by EPSS exploit probability, and one of 1 actively-exploited CVEs in April 2025.
This is a Windows Common Log File System driver flaw that lets an attacker already on a machine escalate to SYSTEM, and it affects Windows 10 version 1809 and Windows Server 2019. It stands out because CISA added it to the Known Exploited Vulnerabilities catalog on 2025-04-08 and it is confirmed in active ransomware campaigns, so the 13 percent EPSS score understates the real-world risk. Attackers chain this kind of local privilege escalation after initial access to gain full control of the host.
Do this: Deploy Microsoft's April 2025 patch for CVE-2025-29824 to all Windows 10 1809 and Server 2019 systems immediately, prioritizing internet-facing and domain-critical hosts.
AI-generated from public data, 2026-07-27. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2025-29824
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Official patch(es) for CVE-2025-29824
Treat as urgent: it is being exploited in the wild (CISA KEV), so patch ahead of items that are not. In Intune or Defender, confirm whether the fixing updates KB5055518, KB5055519, KB5055521, KB5055523, KB5055526, KB5055527, KB5055528, KB5055547, KB5055557, KB5055561, KB5055570, KB5055581, KB5055596, KB5055609 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-2025-29824. 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.
Scope and sources
- Affected products
- Fixed by the same updates
- Authoritative references
Want every Microsoft CVE and the patches that fix it, ranked by real-world risk? See the Microsoft Patch Tracker.