CVE-2026-33825
highpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.067 · 94 %ileexploit · PoCDEEUNLRUUSadded 2026-04-22remediate by 2026-05-06
required action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
EPSS · scored 2026-10-27
Microsoft Defender Insufficient Granularity of Access Control Vulnerability
Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedMicrosoft Defender Antimalware Platformmsrc_csaf
4.18.26030.3011:Security Update:https://www.microsoft.com/en-us/wdsi/defenderupdates
https://www.microsoft.com/en-us/wdsi/defenderupdates
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (8)
Public proof-of-concept and weaponised exploit code.
- 0xBlackash/CVE-2026-33825CVE-2026-33825PoC · poc_in_github
- Joe1sn/CVE-2026-33825RedSun PoC for self usePoC · poc_in_github
affected products (8)
Products and version ranges known to be affected.
- Microsoft Defender Antimalware Platformall versionscert_bundDEcpe:/a:microsoft:defender:antimalware_platform
- microsoft defender antimalware platform< 4.18.26030.3011nvdUScpe:2.3:a:microsoft:defender_antimalware_platform:*:*:*:*:*:*:*:*
advisories (4)
Vendor and ecosystem advisories describing this.
- NCSC-2026-0115Kwetsbaarheid verholpen in Microsoft DefenderNL2026-04-14csaf · ncsc_nlNL
Microsoft heeft een kwetsbaarheid verholpen in System Center.
- WID-SEC-W-2026-1008Microsoft Defender: Schwachstelle ermöglicht PrivilegieneskalationDeutsch2026-04-07csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle in Microsoft Defender ausnutzen, um seine Privilegien auf „NT AUTHORITYSYSTEM“ zu erweitern.
- WID-SEC-W-2026-1099Microsoft Defender: Schwachstelle ermöglicht Erlangen von AdministratorrechtenDeutsch2026-04-14csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle in Microsoft Defender ausnutzen, um Administratorrechte zu erlangen.
- msrc_CVE-2026-33825Microsoft Defender Elevation of Privilege Vulnerability2026-04-14csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33825cnnvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33825enisa_euvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33825Vendor Advisorynvd
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-33825US Government Resourcenvd
- https://www.huntress.com/blog/nightmare-eclipse-intrusionThird Party Advisorynvd
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