🛡️ CVE-2026-33825 — defender-antimalware-platform

🟠 CVSS 7.8 — High ✅ No Known Exploit CWE-1220 NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2026-33825 is classified as CWE-1220: Insufficient Granularity of Access Control. The product implements access controls via a policy or other feature with the intention to disable or restrict accesses (reads and/or writes) to assets in a system from untrusted agents.

Affected software

CVE-2026-33825 is recorded against 1 package.

  • defender-antimalware-platform (fixed in 4.18.26030.3011)

Timeline and source

Published on 14 April 2026 and last revised on 24 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

msrc.microsoft.com
www.cisa.gov
www.huntress.com

Details

Severity HIGH
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-1220
Public Exploit ✅ No
Source NVD
Published 2026-04-14
Updated 2026-08-11
Modified 2026-07-24
Fix URL N/A

Affected Packages

Software From version Fixed in
defender-antimalware-platform 4.18.26030.3011

Similar Threats

Site Security Check

Is defender-antimalware-platform part of your stack?

CVE-2026-33825 is rated CVSS 7.8 High. BotEraser scans your installation against known CVE records and tells you whether this vulnerability applies to the versions you actually run.

Scan My Site Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

Browse related advisories

All advisoriesCVECVE 2026