CVE-2025-24985: Microsoft Windows Fast FAT File System Driver Integer Overflow Vulnerability

CISA Known Exploited Vulnerability (KEV)

Description

Microsoft Windows Fast FAT File System Driver contains an integer overflow or wraparound vulnerability that allows an unauthorized attacker to execute code locally.

Required action (CISA)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-24985 ; https://nvd.nist.gov/vuln/detail/CVE-2025-24985

Weakness behind it

CISA records this vulnerability as an instance of CWE-122, CWE-190. From there the chain continues into CAPEC attack patterns and ATT&CK techniques, all inside this corpus.

References

• NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-24985
• KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog