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Vulnerabilities/CVE-2025-24993Public Intelligence Dossier
Source: microsoft · Limited verification•Last verified: •Collection Healthy
CVE-2025-24993ListedHIGH (raw)CVSS 7.8CWE-122

Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.

Published: 11 Mar 2025•Last updated: 24 Sept 2026, 06:40 PM IST•Source identifier: secure@microsoft.com
Dossier completeness: source-provided sections 3 / 3 · rule guidance available. Missing source facts count as incomplete.
Official source
CISA KEV catalog
Listed
Added11 Mar 2025
Due01 Apr 2025
RansomwareUnknown
CVSS score
7.8HIGH (raw)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Metric sourcesecure@microsoft.com
EPSS probability
2.2%0.022
Percentile83rd
Weakness type
CWE-122
No further CWE recorded
Remediation
Patch status unknown
No fixed version or KB recorded

Why It Matters

Analysis dossier

Why It Matters

Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.

SOC priority

Immediate Attention

Actively exploited (source statement)

Yes

Publicly disclosed

Unknown

Risk basis: CISA KEV exploitation signal; Microsoft or Microsoft-managed product relevance; HIGH severity; Known exploitation signal from CISA KEV or ransomware metadata; Source-confirmed exploitation or CISA KEV/ransomware metadata

Affected Products & Remediation

15 source-backed products
Affected products and versions (source)
  • microsoft windows 10 1507 · < 10.0.10240.20947 · NVD CPE · Source
  • microsoft windows 10 1607 · < 10.0.14393.7876 · NVD CPE · Source
  • microsoft windows 10 1809 · < 10.0.17763.7009 · NVD CPE · Source
  • microsoft windows 10 21h2 · < 10.0.19044.5608 · NVD CPE · Source
  • microsoft windows 10 22h2 · < 10.0.19045.5608 · NVD CPE · Source
  • microsoft windows 11 22h2 · < 10.0.22621.5039 · NVD CPE · Source
  • microsoft windows 11 23h2 · < 10.0.22631.5039 · NVD CPE · Source
  • microsoft windows 11 24h2 · < 10.0.26100.3403 · NVD CPE · Source
  • microsoft windows server 2008 · r2 · NVD CPE · Source
  • microsoft windows server 2012 · r2 · NVD CPE · Source
  • microsoft windows server 2016 · < 10.0.14393.7876 · NVD CPE · Source
  • microsoft windows server 2019 · < 10.0.17763.7009 · NVD CPE · Source
  • microsoft windows server 2022 · < 10.0.20348.3270; 23h2 < 10.0.25398.1486 · NVD CPE · Source
  • microsoft windows server 2022 23h2 · < 10.0.25398.1486 · NVD CPE · Source
  • microsoft windows server 2025 · < 10.0.26100.3403 · NVD CPE · Source
Recorded patch / KBNot provided by source

Vendor or catalog guidance (source)

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

Known exploitation (source facts)

Only what a source states. Unknown means no source has said either way; it is not "not exploited".

CISA KEV
Listed
Exploited (source statement)
Yes
Publicly disclosed (source)
Unknown

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.

Suggested hunting (rule-based inference)

SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.

Matched microsoft-enterprise (Affected product: microsoft windows 10 1507, Vendor: microsoft)

Exposure

  1. Identify affected Microsoft products and compare local builds with the MSRC advisory.Telemetry: DeviceTvmSoftwareVulnerabilities · The MSRC product/build mapping establishes applicability. · Rule microsoft-enterprise

Exploitation evidence

  1. Review the advisory's documented behavior on matching hosts before selecting a hunt.Telemetry: DeviceProcessEvents · Product family alone does not justify a CVE-specific detection. · Rule microsoft-enterprise

Response

  1. Confirm the source-stated KB or mitigation on matching assets.Telemetry: DeviceTvmSoftwareVulnerabilities · A post-update inventory check verifies remediation. · Rule microsoft-enterprise

CISA KEV Record

Catalog entry
11 Mar 2025
Required action due
01 Apr 2025
Known ransomware use
Unknown

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

Change History & Source Data

— No recorded material change

CNA / source
secure@microsoft.com
Record status · verification
UPDATED · Microsoft primary source linked; CISA KEV confirmed
CPE
cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*, cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*, cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*, cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*, cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*, cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*, cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*, cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*, cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*, cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*

Evidence & Provenance

4 public sources
CISA KEV CatalogAdded 2025-03-11msrc.microsoft.comSource recordnvd.nist.govSource recordcisa.govSource record

Linked by the query's stored exact CVE association. Review required tables and validation status before use.

Detection Hunting Query
Target: DeviceTvmSoftwareVulnerabilities•Defender XDR
Detect endpoints exposed to CVE-2025-24993
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2025-24993
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2025-24993"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel desc
Schema Checked · Not runtime validatedSource: SecOps Signal deterministic template · Limited verificationStatic screening: Passed structure and schema checks; tenant execution is not verified.
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Correlated briefings

SecOps Signal surfaces public advisory facts only. A missing value means the source has not published it, not that your environment is unaffected. No tenant inventory is connected.