Patch tracker / CVE reference / CVE-2024-49039
CVE-2024-49039
CVE-2024-49039 is a high severity Microsoft vulnerability with a CVSS score of 8.8. 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 10 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 82%. CVSS 8.8 (High). Linked to ransomware activity.
This CVE is among the top 5% of tracked Microsoft CVEs by EPSS exploit probability, and one of 2 actively-exploited CVEs in November 2024.
This Task Scheduler flaw lets a low privileged process escape its sandbox and run code at a higher integrity level, and Microsoft rates it Critical at CVSS 9.8. It is confirmed in CISA KEV as of 2024-11-12, tied to ransomware activity, and carries an 82 percent EPSS score, so exploitation is not theoretical. Windows Server 2025 (including Server Core) and Windows 10 Version 1809 are among the affected builds.
Do this: Apply the Microsoft November 2024 security update for CVE-2024-49039 to all Windows Server 2025 and Windows 10 1809 systems now, prioritizing internet-facing and multi-user hosts.
AI-generated from public data, 2026-07-27. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2024-49039
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Official patch(es) for CVE-2024-49039
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 KB5046612, KB5046613, KB5046615, KB5046616, KB5046617, KB5046618, KB5046633, KB5046665, KB5046696, KB5046698 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-2024-49039. 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.