CVE-2026-50656CWE-59

CVE-2026-50656

High · published June 16, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
29.4
In the wild
Unconfirmed
What it is

Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "RoguePlanet ".

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00368 · 29.4th percentile
Weakness
CWE-59 · Improper Link Resolution Before File Access ('Link Following')
Published
2026-06-16T23:16Z
Affected products (1)
ProductVersionsFixed in
microsoft/malware_protection_engineall versions—
References (2)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50656 · [email protected]https://github.com/MSNightmare/ShieldBreak · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 25 SEP 03:26Z
    EPSS moved 11% → 0%
    epss
  • 16 JUN 18:01Z
    Microsoft Defender Elevation of Privilege Vulnerability
    cvelistv5