CVE-2026-45647

FAUCET Score

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

First published: Jun 9, 2026Last modified: Jun 9, 2026

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 101.26042.0011CPE matchmatch criteria	cpe:2.3:a:microsoft:defender_for_endpoint::::::macos::*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

Exploitability Score

1.8

Impact Score

3.6

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.21%

Probability of exploitation in next 30 days

EPSS Percentile

12.0%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0022 is in the 38th 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 (1)

microsoftpatch availablevia msrc

Product: Microsoft Defender for Endpoint for MacFixed in: 101.26042.0011

Vendor Advisories (1)

microsoft2026-Jun/CVE-2026-45647Important

Microsoft Defender for Endpoint for Mac Elevation of Privilege Vulnerability

Jun 9, 2026

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2026-45647

Vendor Advisory