CVE-2026-69414

highpriority · track · 10EPSS 0.013 · 71 %ileexploit · PoCDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · PoC

Likely / severe?

1.32% (71st) EPSS

CVSS 7.8 · high

Is it mine?

7 products

Check your exposure

Who says so?

5 sources

enisa_euvd · fstec_bdu · cert_bund · msrc_csaf

EPSS · scored 2026-10-27

Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "ShieldBreak ".

remediations

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

A vendor fix is available.

FixedMicrosoft Malware Protection Enginemsrc_csaf
1.1.26080.3:Security Update:https://www.microsoft.com/en-us/wdsi/defenderupdates
https://www.microsoft.com/en-us/wdsi/defenderupdates

cvss

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

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 1.8 · impact 5.9

v3.17.4highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

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

Exploitation: poc · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-269USCWE-284USCWE-284USCWE-284USCWE-59US

exploits (2)

Public proof-of-concept and weaponised exploit code.

affected products (7)

Products and version ranges known to be affected.

Microsoft Defenderall versionscert_bundDEcpe:/a:microsoft:defender:-
Microsoft Malware Protection Engineall versionscert_bundDEcpe:/a:microsoft:malware_protection_engine:-
Microsoft Microsoft Malware Protection Engineall versionsenisa_euvdEU
Microsoft Corp Microsoft Malware Protection Engineall versionsfstec_bduRU
Microsoft Microsoft Malware Protection Engineall versionsfixedmsrc_csafUS
Microsoft Microsoft Malware Protection Engine< 1.1.26080.3msrc_csafUS
microsoft malware protection engineall versionsnvdUScpe:2.3:a:microsoft:malware_protection_engine:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2856Microsoft Malware Protection Engine und Defender: Schwachstelle ermöglicht Erlangen von AdministratorrechtenDeutsch2026-08-16csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle in Microsoft Defender und Microsoft Malware Protection Engine ausnutzen, um Administratorrechte zu erlangen.
msrc_CVE-2026-69414Microsoft Defender Elevation of Privilege Vulnerability2026-08-14csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd fstec_bdu cert_bund msrc_csaf nvd NVD CVE.org MITRE

published 2026-08-14modified 2026-09-03

references (3)

External citations — patches, advisories, analysis.

scry

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