CVE-2026-33825HIGH 7.8CISA KEVEPSS p92.6%

CVE-2026-33825Microsoft Defender Insufficient Granularity of Access Control Vulnerability

Microsoft / Defender

Description

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

Scoring

CVSS 3.17.8 (HIGH)
VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS6.22% probability of exploitation · percentile 92.6% · 2026-06-18T12:00:27Z
Published2026-04-14
Last modified2026-04-23

CISA KEV entry

Added to KEV: 2026-04-22

Underlying weaknesses· 1

CWE-1220

References

  1. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33825
  2. https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-33825
  3. https://www.huntress.com/blog/nightmare-eclipse-intrusion

1

TypeTargetConfidenceTier
WeaknessInsufficient Granularity of Access Controlcwe-12200%live

(incoming)1

TypeTargetConfidenceTier
KEVEntryMicrosoft Defender Insufficient Granularity of Access Control Vulnerabilitykev-cve-2026-338250%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.