CISA KEV · Known exploitedMedium

CVE-2025-24991

Microsoft Windows

Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.

CVSS: 5.5
EPSS: 1.85%
CISA KEV: Listed
Published: 2025.03.12

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability1.85%

Technical severityCVSS 5.5

Vulnerability overview

Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.

Affected product and versions

Product: Microsoft Windows
Affected versions: 10.0.10240.0, 10.0.14393.0, 10.0.17763.0, 10.0.19044.0, 10.0.19045.0, 10.0.22621.0, 10.0.22631.0, 10.0.26100.0, 6.1.7601.0, 6.0.6003.0, 6.2.9200.0, 6.3.9600.0, 10.0.20348.0, 10.0.25398.0, < 10.0.10240.20947, < 10.0.14393.7876, < 10.0.17763.7009, < 10.0.19044.5608, < 10.0.19045.5608, < 10.0.22621.5039
Fixed versions: 10.0.10240.20947, 10.0.14393.7876, 10.0.17763.7009, 10.0.19044.5608, 10.0.19045.5608, 10.0.22621.5039, 10.0.22631.5039, 10.0.26100.3403, 10.0.20348.3270, 10.0.25398.1486

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

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

Due date: 2025.04.01

1
Identify
Confirm that Microsoft Windows and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE: CWE-125
KEV added: 2025.03.11
Ransomware use: 미확인