CVE-2020-36603 json
The HoYoVerse (formerly miHoYo) Genshin Impact mhyprot2.sys 1.0.0.0 anti-cheat driver does not adequately restrict unprivileged function ca…
published 2022-09-14 4 y ago modified 2026-06-17 4 mo ago also EUVD-2020-24067
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 17 mo ago
Exploit prediction
0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- trendmicro.com https://www.trendmicro.com/en_us/research/22/h/ransomware-actor-abuses-genshin-impact-anti-cheat-driver-to-kill-antivirus.html referenced PoC, tagged "exploit" by a source, unverified
- vice.com https://www.vice.com/en/article/y3p35w/hackers-are-using-anti-cheat-in-genshin-impact-to-ransom-victims referenced PoC, tagged "exploit" by a source, unverified
- web.archive.org https://web.archive.org/web/20211204031301/https://www.godeye.club/2021/05/20/001-disclosure-mhyprot.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.5 | CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H |
Classification
- Weakness
-
- CWE-269 Improper Privilege Management
References
-
trendmicro.com
/en_us/research/22/h/ransomware-actor-abuses-genshin-impact-anti-cheat-driver-to-kill-antivirus.html
exploit, third-party-advisory
-
vice.com
/en/article/y3p35w/hackers-are-using-anti-cheat-in-genshin-impact-to-ransom-victims
exploit, press/media-coverage, third-party-advisory
-
web.archive.org
/web/20211204031301/https://www.godeye.club/2021/05/20/001-disclosure-mhyprot.html
exploit, third-party-advisory
-
github.com
/kkent030315/evil-mhyprot-cli
third-party-advisory
-
github.com
/kagurazakasanae/Mhyprot2DrvControl
third-party-advisory
Sources
- CVE List CVE-2020-36603
- NVD CVE-2020-36603
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.