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.

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
.