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CVE-2026-33825: Microsoft Defender Insufficient Granularity of Access Control Vulnerability
Microsoft Defender · in CISA KEV since 2026-04-22
2026-04-22added to KEV
2026-05-06federal remediation due date
6.75%EPSS exploit probability (30 days) 93.7th percentile
7.8 HIGHCVSS 3.1
Knownknown ransomware use
8days from NVD publication to KEV
What it is
Microsoft Defender contains an insufficient granularity of access control vulnerability that could allow an authorized attacker to escalate privileges locally.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| CWE | CWE-1220 |
|---|---|
| CVSS vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2026-04-14 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2026-33825.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.