MSRXVulnerabilities / CVE-2026-33825
CVE-2026-33825
Published 2026-04-14 · Analyzed
CVE-2026-33825
Microsoft Defender Insufficient Granularity of Access Control Vulnerability
Exploited in the wild: CISA added it to the Known Exploited Vulnerabilities catalog on 2026-04-22, with a fix-by date of 2026-05-06. Patch it first.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
7.8 HIGH
CVSS 3.1 · CNA · microsoft.com
CVSS 3.1 · CNA · microsoft.com
6.7%
chance of exploitation in the next 30 days (EPSS; higher than 93% of CVEs)
chance of exploitation in the next 30 days (EPSS; higher than 93% of CVEs)
Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.
Scores
Affected products
- microsoft defender antimalware platform: < 4.18.26030.3011
Weakness: CWE-1220
3 references (advisories, patches, write-ups)
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33825 · Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-33825 · US Government Resource
- https://www.huntress.com/blog/nightmare-eclipse-intrusion · Third Party Advisory
Sources: NVD, CVE.org, FIRST EPSS. Missing ones did not answer or have no record yet.