CVE-2026-69414
Microsoft Defender Elevation of Privilege Vulnerability
Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "ShieldBreak ".
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Microsoft Defender Elevation of Privilege Vulnerability
Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "ShieldBreak ".
- Record
CVE-2026-69414- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C - Weakness
- CWE-59, CWE-269
- Updated
- 2026-11-02
EUVDEUVD-2026-58811
Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "ShieldBreak ".
- Record
EUVD-2026-58811- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-7whx-j8gf-3fxv
Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in...
Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "ShieldBreak ". We are working to provide a high quality security update that addresses this vulnerability. We will provide information in this CVE when the update is available.
- Record
GHSA-7whx-j8gf-3fxv- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-59, CWE-269, CWE-284
- Updated
- 2026-11-02
NVD
Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "ShieldBreak ".
- Record
CVE-2026-69414- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-59, CWE-269
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | 1neptune/ShieldBreak | 2026-08-18 |
| PoC in GitHub | maxprog-svg/CVE-2026-69414 | 2026-10-10 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-69414 is a high vulnerability (CVSS 7.8) in Microsoft Malware Protection Engine, published August 14, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.37%, the 72nd percentile. No source names a fixed version.