CVE-2026-33825
Microsoft Defender Elevation of Privilege Vulnerability
Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.
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
Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.
- Record
CVE-2026-33825- 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-1220
- Updated
- 2026-11-02
EUVDEUVD-2026-22643
Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.
- Record
EUVD-2026-22643- 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-8vp7-4rmv-4868
Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to...
Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.
- Record
GHSA-8vp7-4rmv-4868- 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-1220
- Updated
- 2026-11-02
CISA KEV No score
Microsoft Defender Insufficient Granularity of Access Control Vulnerability
Microsoft Defender contains an insufficient granularity of access control vulnerability that could allow an authorized attacker to escalate privileges locally.
- Record
CVE-2026-33825- Weakness
- CWE-1220
- Updated
- 2026-11-02
NVD
Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.
- Record
CVE-2026-33825- 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-1220
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | Letlaka/redsun-bluehammer-undefend-detection-pack | 2026-04-17 |
| PoC in GitHub | Bilal3755/Detecting_blue_hammer_vuln | 2026-04-20 |
| PoC in GitHub | kaleth4/CVE-2026-33825 | 2026-04-22 |
| PoC in GitHub | Joe1sn/CVE-2026-33825 | 2026-05-02 |
| PoC in GitHub | 0xBlackash/CVE-2026-33825 | 2026-05-18 |
| PoC in GitHub | anasabugaddara-ux/defender-bluehammer-audit | 2026-10-01 |
| PoC in GitHub | dntaskmehow/NEO-DEFENDER | 2026-10-20 |
History
| Recorded | Changed | Sources |
|---|---|---|
| exploitation, exploits | ||
| first indexed | CVE List, EUVD, GitHub Advisories, CISA KEV, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-33825 is a high vulnerability (CVSS 7.8) in Microsoft Defender, published April 14, 2026. CISA lists it as known to be exploited, since April 22, 2026. EUVD reports exploitation since April 22, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 6.75%, the 93rd percentile. No source names a fixed version.