Microsoft Defender for Endpoint for Mac Elevation of Privilege Vulnerability

CVE-2026-56178 is an elevation of privilege vulnerability in Microsoft Defender for Endpoint (rated Important, CVSS 5.5).

1 version

Facts

Microsoft id
CVE-2026-56178
Products
Microsoft Defender for Endpoint
Severity
Important
Impact
Elevation of Privilege
CVSS
5.5
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
Customer action required
Yes
Release
2026-Jul
Assigned by
Microsoft
Weakness
CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
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

  1. Revision 1.0, 2026-07-14: Information published.

Microsoft says

Time-of-check time-of-use (toctou) race condition in Microsoft Defender for Endpoint allows an authorized attacker to elevate privileges locally.

Security updates,

Read Microsoft's full post

What Microsoft changed

One version so far. If Microsoft edits it, each change shows here with what was removed and added.

  1. First version we captured ·

    The text as we first saw it

    Seen by us · Microsoft's timestamp · Microsoft's page

Other changes for Microsoft Defender

Last updated