CVE-2026-33825

CVE Enrichment

CVSS: 7.8 HIGH
EPSS: 0.40%
EPSS Percentile: 32.19%
CISA KEV: YES — Known Exploited Vulnerability

Description

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

Technical Details

CVSS Version: 3.1
CNA / NVD Source: secure@microsoft.com
Published: 15-Apr-2026 01:17
Last Modified: 25-Jul-2026 05:10
EPSS Date: 2026-10-12
CWE: CWE-1220

CVSS Vector


            CVSS:3.1                            AV:L /
                            AC:L /
                            PR:L /
                            UI:N /
                            S:U /
                            C:H /
                            I:H /
                            A:H

CISA KEV Details

Date Added: 2026-04-22
Remediation Due: 2026-05-06
Known Ransomware Campaign Use: Known
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.
Notes: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33825 ; https://nvd.nist.gov/vuln/detail/CVE-2026-33825

Affected Products / Versions

microsoft / defender_antimalware_platform
Version / affected range: * · before (exclusive) 4.18.26030.3011
cpe:2.3:a:microsoft:defender_antimalware_platform:*:*:*:*:*:*:*:*

References

Last enrichment sync: 13-Oct-2026 03:00
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (2)

CVE-2026-33825 Recorded Future Reported 59 High-Impact Vulnerabilities in June, 56 Actively Exploited
a CVE or issued a fix. BlueHammer, the earlier exploit by the same researcher, was addressed as CVE-2026-33825 in April 2026 Patch . RedSun is an independent attack vector and remains fully unpatched on all RedSun Exploit Uses Windows Defender to Gain SYSTEM Privileges

CVE (55)

Malware (6)

People (1)

Threat Actors (6)

MITRE ATT&CK (1)

Vendors (26)

Products (62)

Tools (4)

Industries (2)

Countries (1)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.