Microsoft Defender Information Disclosure Vulnerability
CVE-2026-70264 is an information disclosure vulnerability in Microsoft Defender (rated Important, CVSS 5.5).
1 version
Facts
- Microsoft id
CVE-2026-70264- Products
- Microsoft Defender
- Severity
- Important
- Impact
- Information Disclosure
- CVSS
- 5.5
- CVSS 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
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- Exploitation Less Likely
- Customer action required
- Yes
- Release
- 2026-Oct
- Assigned by
- Microsoft
- Weakness
- CWE-59: Improper Link Resolution Before File Access ('Link Following')
- MSRC revision
- 1.0
- Status pages
- Microsoft Defender status
- First captured by us
- (from our first import of this list)
- Microsoft last modified
- Source
- Security updates · open the original at Microsoft
Microsoft's revision notes
- Revision 1.0, 2026-10-13:
Information published.
Microsoft says
Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to disclose information locally.
What Microsoft changed
One version so far. If Microsoft edits it, each change shows here with what was removed and added.
First version we captured ·
The text as we first saw it
Seen by us · Microsoft's timestamp · Microsoft's page
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Last updated