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CVE-2026-33825CISA KEV

Microsoft Defender Insufficient Granularity of Access Control Vulnerability

CISA lists this Microsoft vulnerability as known exploited. Its MSRC release detail is outside this installation's collected history.

CISA KEV Check MSRC

CISA catalog record

Microsoft Defender contains an insufficient granularity of access control vulnerability that could allow an authorized attacker to escalate privileges locally.

Product: Defender
Added to KEV: 22 Apr 2026
Federal remediation due: 6 May 2026
Known ransomware use: Yes

Page history

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Field-level log (2)

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23 Oct 2026 · 09:33:49 UTC Source coverage: cisa-kevIncomplete → Current
23 Oct 2026 · 08:31:50 UTC Source coverage: cisa-kevCurrent → Incomplete

Explore global source statements, affected packages and advisory history for CVE-2026-33825. The catalog has a separate collection scope from Microsoft release records.

cve-program · CVE-2026-33825

Published

Microsoft Defender Antimalware Platform

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "Microsoft",
                    "product": "Microsoft Defender Antimalware Platform",
                    "versions": [
                        {
                            "version": "4.0.0.0",
                            "lessThan": "4.18.26030.3011",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON