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CVE-2020-36603

The HoYoVerse (formerly miHoYo) Genshin Impact mhyprot2.sys 1.0.0.0 anti-cheat driver does not...

6.5 MediumPublic exploit

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.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
High
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.62%Down 0.9 points since Sep 15, 2022
90%50%10%1%

What each source reports

NVD Score used 6.5

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.

Record
CVE-2020-36603
CVSS 3.1
6.5 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-269
Updated
2026-11-02
CVE List 6.5

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.

Record
CVE-2020-36603
CVSS 3.1
6.5 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-269
Updated
2026-11-02
EUVDEUVD-2020-24067 6.5

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.

Record
EUVD-2020-24067
CVSS 3.1
6.5 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-vwh6-r56v-wq74 6.5

The HoYoVerse (formerly miHoYo) Genshin Impact mhyprot2.sys 1.0.0.0 anti-cheat driver does not...

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.

Record
GHSA-vwh6-r56v-wq74
CVSS 3.1
6.5 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-269
Updated
2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubgmh5225/CVE-2020-366032023-01-12

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-36603 is a medium vulnerability (CVSS 6.5) in Hoyoverse Mhyprot2, published September 14, 2022. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.62%, the 50th percentile. No source names a fixed version.

References

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