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CVE-2020-36603

MEDIUM
6.5
CVSS Score
Published: September 14, 2022 at 09:33 PM UTC
Updated: June 17, 2026 at 03:15 AM UTC
1 product affected across 1 vendorMHYPROT2

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.6%
SSVC
PoC

Description

The HoYoVerse (formerly miHoYo) Genshin Impact mhyprot2.sys 1.0.0.0 anti-cheat driver does not adequately restrict unprivileged function calls, allowing local, unprivileged users to execute arbitrary code with SYSTEM privileges on Microsoft Windows systems. The mhyprot2.sys driver must first be installed by a user with administrative privileges.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/kagurazakasanae/Mhyprot2DrvControl
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/kkent030315/evil-mhyprot-cli
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://web.archive.org/web/20211204031301/https://www.godeye.club/2021/05/20/001-disclosure-mhyprot.html
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://www.trendmicro.com/en_us/research/22/h/ransomware-actor-abuses-genshin-impact-anti-cheat-driver-to-kill-antivirus.html
x_refsource_MISCExploitPress/Media CoverageThird Party Advisory
Source: [email protected]
https://www.vice.com/en/article/y3p35w/hackers-are-using-anti-cheat-in-genshin-impact-to-ransom-victims

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfoCWE-269

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