HIGH CWE-59
CVE-2026-50656
Microsoft Defender Elevation of Privilege Vulnerability
Microsoft·Malware Protection Engine
7.8/ 10
CVSS 3.1
High severity
11%
EPSS exploit odds
Chance of exploitation in the next 30 days
Higher than 96% of all CVEs
Not listed
CISA KEV catalog
No confirmed in-the-wild exploitation on CISA's list, but a public proof of concept exists.
Timeline
- Published
- Jun 16, 2026
- Updated
- Sep 24, 2026
- First covered
- Aug 12, 2026
- Latest story
- 3 months ago
Summary
Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "RoguePlanet ".
CWE-59Improper Link Resolution Before File Access ('Link Following')
Attack profile
Attack vectorLocal
ComplexityLow
PrivilegesLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:U/RC:CAffected products
- Microsoft Malware Protection Engine1.1.0.0 to before 1.1.26060.3008