CVE-2025-24993
Published: March 11, 2025
Official Description
Microsoft Windows New Technology File System (NTFS) contains a heap-based buffer overflow vulnerability that allows an unauthorized attacker to execute code locally.
CISA KEV Advisory
Microsoft Windows NTFS Heap-Based Buffer Overflow Vulnerability
Microsoft Windows New Technology File System (NTFS) contains a heap-based buffer overflow vulnerability that allows an unauthorized attacker to execute code locally.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Risk Analysis
This is a high-severity heap-based buffer overflow vulnerability in Microsoft Windows New Technology File System (NTFS) that allows an unauthorized attacker to execute code locally. Despite a low EPSS score of 0.01475, its inclusion in CISA's KEV catalog confirms it has been actively exploited.
This vulnerability has been actively exploited in the wild. Exploitation requires local access to the system.
Apply all available security updates for Microsoft Windows to patch the NTFS driver. Implement least privilege principles to limit potential attacker capabilities.
Technical Analysis
CVE-2025-24993 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2025-24993 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2025-24993 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1