CVE-2026-50658

FAUCET Score

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

First published: Jul 14, 2026Last modified: Jul 14, 2026

Impacted Technologies

Vendor	Product	Version(s)	CPE
		>= 101.0.0, < 101.26042.0020CPE matchmatch criteria	cpe:2.3:a:microsoft:defender_for_endpoint::::::macos::*

CVSS Data

CVSS version used by this source: 3.1

7.0HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

Exploitability Score

1.0

Impact Score

5.9

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.19%

Probability of exploitation in next 30 days

EPSS Percentile

8.7%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0019 is in the 31st percentile among its peer group of 1,523 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

microsoftpatch availablevia msrc

Product: Microsoft Defender for Endpoint for MacFixed in: 101.26042.0020

View patch

microsoftvendor investigatingvia nvd_reference

View patch

Vendor Advisories (1)

microsoft2026-Jul/CVE-2026-50658Important

Microsoft Defender for Endpoint for Mac Elevation of Privilege Vulnerability

Jul 14, 2026

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2026-50658

Vendor Advisory