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April 2026 Patch TuesdayMSRC-2026-04-system-center-release-notesNormal patch window

Microsoft · MSRC-2026-04-system-center-release-notes

Linked CVE review

Deploy Microsoft System Center update for Microsoft Defender Antimalware Platform

Linked CVEs
1
Confirmed exploited
1
PoC or lab evidence
0
Maximum CVSS
7.8
Evidence is kept separate

Confirmed exploitation, public exploit material, EPSS probability and CVSS severity answer different questions. “No confirmation recorded” means the checked sources do not currently confirm exploitation. It is not proof that exploitation has not occurred.

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1 of 1 linked CVEs shown
Confirmed exploitedCVSS above 9.0
CVE and descriptionSeverityExploit realityForecast and accessRemediation
CVE-2026-33825 Immediate evidence
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.

7.8 · CVSS 3.1 · HighSource: CNAConfirmed in the wildCISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2026-04-22. Known ransomware campaign use is recorded.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.EPSS: 0.40% · 32.1th percentileForecast date: 2026-10-09LOCAL · LOW complexity · LOW privileges · NONE user interactionPatch nowCISA confirms exploitation in the wild and lists 2026-05-06 as the remediation due date.Mitigation available. No fixed version is explicitly recorded in the structured CVE data.