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CVE-2025-24991: Microsoft Windows NTFS Out-Of-Bounds Read Vulnerability

criticalknown exploitedCVE-2025-24991
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Microsoft Windows New Technology File System (NTFS) contains an out-of-bounds read vulnerability that allows an authorized attacker to disclose information locally.

CSIRTS triage

vendor: Microsoftproduct: Windows NTFSInformation disclosure
What
This vulnerability allows an authorized attacker to disclose information locally through an out-of-bounds read.
Who is affected
Authorized attackers on systems using NTFS are affected.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Apply the latest security updates for Windows NTFS.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2025-03-11
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-24991

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2025-24991coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft Windows NTFS

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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