CVE-2020-36603

Name: CVE-2020-36603
Creator: NVD / NIST
Published: 2022-09-14T22:15:11.177+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.42%

Last modified Jun 17, 2026

CVE-2020-36603 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.42%

33.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-269

Affected Software

Vendor	Product	Versions
Hoyoverse	Mhyprot2	1.0.0.0

References

https://github.com/kagurazakasanae/Mhyprot2DrvControlThird Party Advisory
https://github.com/kkent030315/evil-mhyprot-cliThird Party Advisory
https://web.archive.org/web/20211204031301/https://www.godeye.club/2021/05/20/001-disclosure-mhyprot.htmlExploit, Third Party Advisory
https://www.trendmicro.com/en_us/research/22/h/ransomware-actor-abuses-genshin-impact-anti-cheat-driver-to-kill-antivirus.htmlExploit, Third Party Advisory
https://www.vice.com/en/article/y3p35w/hackers-are-using-anti-cheat-in-genshin-impact-to-ransom-victimsExploit, Press/Media Coverage, Third Party Advisory
https://github.com/kagurazakasanae/Mhyprot2DrvControlThird Party Advisory
https://github.com/kkent030315/evil-mhyprot-cliThird Party Advisory
https://web.archive.org/web/20211204031301/https://www.godeye.club/2021/05/20/001-disclosure-mhyprot.htmlExploit, Third Party Advisory
https://www.trendmicro.com/en_us/research/22/h/ransomware-actor-abuses-genshin-impact-anti-cheat-driver-to-kill-antivirus.htmlExploit, Third Party Advisory
https://www.vice.com/en/article/y3p35w/hackers-are-using-anti-cheat-in-genshin-impact-to-ransom-victimsExploit, Press/Media Coverage, Third Party Advisory

Timeline

Published: Sep 14, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-36603?

How severe is CVE-2020-36603?

CVE-2020-36603 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36603?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-36603?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST