How severe is CVE-2026-33825?

CVE-2026-33825 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-33825 being actively exploited?

Yes. CVE-2026-33825 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-04-22, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2026-33825?

CVE-2026-33825 affects Microsoft Defender Antimalware Platform. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33825?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2026-33825 have an EU (EUVD) identifier?

Yes. CVE-2026-33825 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22643. It is also flagged as exploited in the EUVD (since 2026-04-22).

When was CVE-2026-33825 published?

CVE-2026-33825 was published on 2026-04-14 and last updated on 2026-06-17.

CVE-2026-33825

CVE-2026-33825 is a high-severity vulnerability in Microsoft Defender Antimalware Platform with a CVSS 3.x base score of 7.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2026-04-22). The underlying weakness is classified as CWE-1220.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Yes — listed in CISA KEV (added 2026-04-22)
EU (EUVD) id: EUVD-2026-22643
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2026-04-22)
Weakness: CWE-1220
Affected product: Microsoft Defender Antimalware Platform
Published: 2026-04-14
Last modified: 2026-06-17

Description

Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.

Frequently asked questions

What is CVE-2026-33825?: Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.
How severe is CVE-2026-33825?: CVE-2026-33825 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-33825 being actively exploited?: Yes. CVE-2026-33825 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-04-22, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2026-33825?: CVE-2026-33825 affects Microsoft Defender Antimalware Platform. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33825?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2026-33825 have an EU (EUVD) identifier?: Yes. CVE-2026-33825 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22643. It is also flagged as exploited in the EUVD (since 2026-04-22).
When was CVE-2026-33825 published?: CVE-2026-33825 was published on 2026-04-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:microsoft:defender_antimalware_platform:*:*:*:*:*:*:*:*

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