Exploited Vulnerabilities DailyCVE-2026-33825: Microsoft Defender
EPSS0.3%No. 1728 of 1739 in KEV
CVE year2026listed the same year
Same vendor in KEV389
Same product5
| Field | Value |
|---|---|
| Vendor | Microsoft |
| Product | Defender |
| Name | Microsoft Defender Insufficient Granularity of Access Control Vulnerability |
| Added to KEV | 2026-04-22 |
| US federal due date | 2026-05-06 |
| Ransomware use | Known |
| CWE | CWE-1220 |
CISA description
Microsoft Defender contains an insufficient granularity of access control vulnerability that could allow an authorized attacker to escalate privileges locally.
Other entries for this product
| CVE | Vendor / product | Added | EPSS | Ransomware |
|---|---|---|---|---|
| CVE-2026-45498 | Microsoft Defender | 2026-05-20 | 1.2% | Unknown |
| CVE-2026-41091 | Microsoft Defender | 2026-05-20 | 0.4% | Unknown |
| CVE-2022-44698 | Microsoft Defender | 2022-12-13 | 76.2% | Known |
| CVE-2021-1647 | Microsoft Defender | 2021-11-03 | 39.3% | Unknown |
Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page
A Microsoft Defender vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2026-04-22.