Heap-Based Buffer Overflow in Windows NTFS by Microsoft
CVE-2025-24993

7.8HIGH

Key Information:

Vendor
Microsoft
Status
Windows 10 Version 1809
Windows Server 2019
Windows Server 2019 (server Core Installation)
Windows Server 2022
Vendor
CVE Published:
11 March 2025

Badges

📈 Score: 198👾 Exploit Exists🦅 CISA Reported📰 News Worthy

What is CVE-2025-24993?

CVE-2025-24993 is a severe vulnerability in the Windows NTFS file system developed by Microsoft. This vulnerability stems from a heap-based buffer overflow, which can allow unauthorized attackers to execute arbitrary code on affected systems. Given that Windows NTFS is integral to file storage and management on Windows operating systems, the impact of this vulnerability can be substantial, enabling malicious actors to manipulate or control systems that rely on this file system, thus posing significant risks to organizational security.

Technical Details

CVE-2025-24993 involves a heap-based buffer overflow, a common type of vulnerability where a program writes more data to a buffer located on the heap than what the buffer can handle. This overflow can lead to the execution of arbitrary code, potentially allowing attackers to gain unauthorized access or control of the system. The vulnerability has been confirmed to be exploitable, raising concerns over its implications for users of the Windows NTFS file system.

Potential Impact of CVE-2025-24993

  1. Remote Code Execution: Attackers can exploit this vulnerability to execute arbitrary code on systems running Windows NTFS, which can lead to full system compromise and unauthorized actions performed by the attacker.

  2. Data Breaches: Successful exploitation could allow attackers to access sensitive data stored on affected systems, potentially leading to data theft and significant privacy violations for organizations.

  3. Increased Malware Risks: The presence of this vulnerability may encourage cybercriminals, including ransomware groups, to target organizations that utilize affected systems, potentially leading to increased incidence of ransomware attacks and other forms of malware deployment.

CISA Reported

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Affected Version(s)

Windows 10 Version 1507 32-bit Systems 10.0.10240.0 < 10.0.10240.20947

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.7876

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.7009

News Articles

favicon imageHotHardware

Microsoft Fixes Six Actively-Exploited 0-Day Flaws In Patch Tuesday Rollout, Update ASAP

Microsoft released patches for 57 security flaws, six of which are already being exploited, while cybersecurity experts describe another six as critical.

3 weeks ago

favicon imageKrebs on Security

Microsoft: 6 Zero-Days in March 2025 Patch Tuesday

Microsoft today issued more than 50 security updates for its various Windows operating systems, including fixes for a whopping six zero-day vulnerabilities that are already seeing active exploitation.

3 weeks ago

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 📰

    First article discovered by Krebs on Security

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • Vulnerability published

  • Vulnerability Reserved

.