CVE-2026-61350

Physical information disclosure via NTFS buffer over-read

Published Aug 11, 2026 · Updated Aug 25, 2026

Information disclosure in Windows NTFS in Microsoft Windows and Windows Server allows physically proximate attackers to read memory. Microsoft has disclosed only that NTFS performs a buffer over-read; public records do not identify the code path, the crafted filesystem structure, or the specific memory region read past bounds. Exploitation requires physical access to the device, and the published CVSS and description bound the impact to confidentiality rather than modification or service interruption.

CVSS severity4.6
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Windows NTFS in Microsoft Windows and Windows Server allows physically proximate attackers to read memory. Microsoft has disclosed only that NTFS performs a buffer over-read; public records do not identify the code path, the crafted filesystem structure, or the specific memory region read past bounds. Exploitation requires physical access to the device, and the published CVSS and description bound the impact to confidentiality rather than modification or service interruption.

The record

CVE
CVE-2026-61350
Published
Aug 11, 2026
Updated
Aug 25, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-126
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.6Microsoft CorporationCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-126Buffer Over-read

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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