CVE-2026-45647

highpriority · track · 28EPSS 0.002 · 12 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.21% (12th) EPSS

CVSS 7 · high

Is it mine?

6 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedMicrosoft Defender for Endpoint for Macmsrc_csaf
101.26042.0011:Security Update:https://learn.microsoft.com/en-us/defender-endpoint/mac-updates?view=o365-worldwide
https://learn.microsoft.com/en-us/defender-endpoint/mac-updates?view=o365-worldwide

cvss

Technical severity, 0–10. One row per scoring source.

7.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.5–7

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1 · impact 5.9

v3.15.5mediumAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:Csecondary · ENISA EU

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nsecondary · secure@microsoft.com USexploitability 1.8 · impact 3.6

v3.16.4mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-367USCWE-367USCWE-367US

affected products (6)

Products and version ranges known to be affected.

Microsoft Defender for Endpoint for Macall versionscert_bundDEcpe:/a:microsoft:defender:for_endpoint_for_mac
Microsoft Microsoft Defender for Endpoint for Mac101.0.0 → 101.26042.0011enisa_euvdEU
Microsoft Corp Microsoft Defender for Endpoint≤ 101.26042.0011fstec_bduRU
Microsoft Microsoft Defender for Endpoint for Macall versionsfixedmsrc_csafUS
Microsoft Microsoft Defender for Endpoint for Mac< 101.26042.0011msrc_csafUS
microsoft defender for endpoint< 101.26042.0011nvdUScpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1848Microsoft Defender für Endpoint: Schwachstelle ermöglicht PrivilegieneskalationDeutsch2026-06-09csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle in Microsoft Defender für Endpoint für Mac ausnutzen, um seine Privilegien zu erhöhen.
msrc_CVE-2026-45647Microsoft Defender for Endpoint for Mac Elevation of Privilege Vulnerability2026-06-09csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund msrc_csaf nvd NVD CVE.org MITRE

published 2026-06-09modified 2026-07-23

references (4)

External citations — patches, advisories, analysis.

scry

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