Insecure Folder Permissions Vulnerability in Memu Play by Microvirt
CVE-2020-37129

8.5HIGH

Key Information:

Vendor

Microvirt

Status
Memu Play
Vendor
CVE Published:
5 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-37129?

Memu Play version 7.1.3 is affected by a security issue due to insecure folder permissions. This vulnerability allows low-privileged users to alter the MemuService.exe executable by replacing it with a malicious file upon system restart. By exploiting these unrestricted file modification permissions, an attacker can escalate their privileges to SYSTEM level, potentially compromising the entire system's security.

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Affected Version(s)

Memu Play 7.1.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2020-37129 - Proof of Concept

References

https://www.exploit-db.com/exploits/48283
exploit
https://www.memuplay.com/
product
https://www.vulncheck.com/advisories/memu-play-insecure-f...
third-party-advisory

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

chuyreds
JSON
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