Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to disclose information locally.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Microsoft Windows Defender affected
Version Status Constraints
0 affected < 1.1.26090.9

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

Vendors Products
Microsoft Subscribe
Windows Defender Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70264 cve-icon cve-icon
History

Wed, 14 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 13 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to disclose information locally.
Title Microsoft Defender Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft windows Defender
Weaknesses CWE-59
CPEs cpe:2.3:a:microsoft:windows_defender:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows Defender
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-13T22:23:11.965Z

Reserved: 2026-08-03T23:56:34.119Z

Link: CVE-2026-70264

cve-icon Vulnrichment

Updated: 2026-10-13T20:48:04.593Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-13T19:19:45.183

Modified: 2026-10-13T21:18:14.320

Link: CVE-2026-70264

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-14T03:00:12Z

Weaknesses