CVE-2020-36603Known exploitationPublic exploit

SYSTEM code execution via unrestricted driver calls

Published Sep 14, 2022 · Updated Jun 4, 2025

Privilege escalation in HoYoVerse Genshin Impact mhyprot2.sys 1.0.0.0 allows local users to execute code with SYSTEM privileges. The driver exposes DeviceIoControl operations without adequately restricting unprivileged callers, providing kernel-context memory access and process-termination primitives. An administrator must first install the driver, but a standard user can invoke the privileged operations once its service is running.

CVSS severity6.5
Medium
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in HoYoVerse Genshin Impact mhyprot2.sys 1.0.0.0 allows local users to execute code with SYSTEM privileges. The driver exposes DeviceIoControl operations without adequately restricting unprivileged callers, providing kernel-context memory access and process-termination primitives. An administrator must first install the driver, but a standard user can invoke the privileged operations once its service is running.

The record

CVE
CVE-2020-36603
Published
Sep 14, 2022
Updated
Jun 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-269, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 14, 2022CVE publishedPublication date reported by the CVE source.
  2. Jun 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
6.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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