Mar 2025: Windows Fast FAT File System Driver Remote Code Execution Vulnerability
CVE-2025-24985 Published on March 11, 2025
Integer overflow or wraparound in Windows Fast FAT Driver allows an unauthorized attacker to execute code locally.
Known Exploited Vulnerability
This Microsoft Windows Fast FAT File System Driver Integer Overflow Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Microsoft Windows Fast FAT File System Driver contains an integer overflow or wraparound vulnerability that allows an unauthorized attacker to execute code with a physical attack.
The following remediation steps are recommended / required by April 1, 2025: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Weakness Types
Integer Overflow or Wraparound
The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. An integer overflow or wraparound occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may wrap to become a very small or negative number. While this may be intended behavior in circumstances that rely on wrapping, it can have security consequences if the wrap is unexpected. This is especially the case if the integer overflow can be triggered using user-supplied inputs. This becomes security-critical when the result is used to control looping, make a security decision, or determine the offset or size in behaviors such as memory allocation, copying, concatenation, etc.
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
Products Associated with CVE-2025-24985
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2025-24985 are published in these products:
Affected Versions
Microsoft Windows 10 Version 1809:- Version 10.0.17763.0 and below 10.0.17763.7009 is affected.
- Version 10.0.17763.0 and below 10.0.17763.7009 is affected.
- Version 10.0.17763.0 and below 10.0.17763.7009 is affected.
- Version 10.0.20348.0 and below 10.0.20348.3328 is affected.
- Version 10.0.19044.0 and below 10.0.19044.5608 is affected.
- Version 10.0.22621.0 and below 10.0.22621.5039 is affected.
- Version 10.0.19045.0 and below 10.0.19045.5608 is affected.
- Version 10.0.26100.0 and below 10.0.26100.3476 is affected.
- Version 10.0.22631.0 and below 10.0.22631.5039 is affected.
- Version 10.0.22631.0 and below 10.0.22631.5039 is affected.
- Version 10.0.25398.0 and below 10.0.25398.1486 is affected.
- Version 10.0.26100.0 and below 10.0.26100.3476 is affected.
- Version 10.0.26100.0 and below 10.0.26100.3476 is affected.
- Version 10.0.10240.0 and below 10.0.10240.20947 is affected.
- Version 10.0.14393.0 and below 10.0.14393.7876 is affected.
- Version 10.0.14393.0 and below 10.0.14393.7876 is affected.
- Version 10.0.14393.0 and below 10.0.14393.7876 is affected.
- Version 6.0.6003.0 and below 6.0.6003.23168 is affected.
- Version 6.0.6003.0 and below 6.0.6003.23168 is affected.
- Version 6.0.6003.0 and below 6.0.6003.23168 is affected.
- Version 6.1.7601.0 and below 6.1.7601.27618 is affected.
- Version 6.1.7601.0 and below 6.1.7601.27618 is affected.
- Version 6.2.9200.0 and below 6.2.9200.25368 is affected.
- Version 6.2.9200.0 and below 6.2.9200.25368 is affected.
- Version 6.3.9600.0 and below 6.3.9600.22470 is affected.
- Version 6.3.9600.0 and below 6.3.9600.22470 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.