CVE-2025-24985KEV · OVERDUECWE-122CWE-190

Windows Fast FAT File System Driver Remote Code Execution Vulnerability

High · published March 11, 2025

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 7.8. It is confirmed in active exploitation. It sits in the 90.2th percentile for exploit probability.

571
days past CISA
deadline
CVSS v3.1
7.8
EPSS
4%
Percentile
90.2
In the wild
Confirmed
What it is

⚡ An unauthorized attacker can exploit an integer overflow in the Windows Fast FAT Driver to execute code locally — it's like leaving the backdoor wide open for an intruder to waltz in! 🔥 Think of it as a faulty delivery system where the packages are sent to the wrong address due to a miscalculation. Instead of a safe handoff, sensitive data or malicious software land directly in the wrong hands. This vulnerability could lead to an attacker gaining complete control over the affected system — they could install programs, view sensitive data, or even delete everything! Given the severity, it's absolutely crucial to address this immediately before it escalates into a full-blown catastrophe.

Put simply

Think of it as a faulty delivery system where the packages are sent to the wrong address due to a miscalculation. Instead of a safe handoff, sensitive data or malicious software land directly in the wrong hands. CVE-2025-24985 involves an integer overflow or wraparound in the Windows Fast FAT Driver, which can be leveraged by attackers to execute arbitrary code locally without authorization.

What to do

This vulnerability could lead to an attacker gaining complete control over the affected system — they could install programs, view sensitive data, or even delete everything! Given the severity, it's absolutely crucial to address this immediately before it escalates into a full-blown catastrophe. To remediate this vulnerability, ensure that you apply the latest security patches from Microsoft as soon as possible. Regularly audit your systems to confirm that updates are applied and consider disabling unnecessary services to minimize the attack surface. You've got this! Stay proactive, apply the patches, and keep your systems secure! 🛡️

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.03890 · 90.2th percentile
Weaknesses
CWE-122 · Heap-based Buffer Overflow; CWE-190 · Integer Overflow or Wraparound
Published
2025-03-11T16:59Z
KEV added
2025-03-11 · due 2025-04-01
EPSS history
Timeline
  • 11 MAR 16:59Z
    Windows Fast FAT File System Driver Remote Code Execution Vulnerability
    cvelistv5
  • 11 MAR 00:00Z
    Added to CISA KEV — remediate by Apr 1
    kev