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CVE-2026-83786

Windows NTFS Information Disclosure Vulnerability

MEDIUM
4.7
CVSS Score
Published: October 13, 2026 at 07:00 PM UTC
Updated: October 29, 2026 at 04:16 PM UTC
15 products affected across 1 vendorWindows Server 2016Windows Server 2019Windows Server 2012

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Severity
MEDIUM4.7
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

Generation of error message containing sensitive information in Windows NTFS allows an authorized attacker to disclose information locally.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83786

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.7MEDIUMmicrosoft
Vector?

Quick Info

StatusANALYZED
CWE
CWE-209

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