Microvirt Memu Play 7.1.3 File MemuService.exe default permission

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Microvirt Memu Play 7.1.3. Impacted is an unknown function of the file MemuService.exe of the component File Handler. The manipulation leads to default permission. This vulnerability is referenced as CVE-2020-37129. The attack can only be performed from a local environment. Furthermore, an exploit is available.

Detailsinfo

A vulnerability was found in Microvirt Memu Play 7.1.3 and classified as critical. This issue affects some unknown processing of the file MemuService.exe of the component File Handler. The manipulation with an unknown input leads to a default permission vulnerability. Using CWE to declare the problem leads to CWE-276. During installation, installed file permissions are set to allow anyone to modify those files. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Memu Play 7.1.3 contains an insecure folder permissions vulnerability that allows low-privileged users to modify the MemuService.exe executable. Attackers can replace the service executable with a malicious file during system restart to gain SYSTEM-level privileges by exploiting unrestricted file modification permissions.

The weakness was published by chuyreds as 48283. The advisory is shared at exploit-db.com. The identification of this vulnerability is CVE-2020-37129 since 02/03/2026. The exploitation is known to be easy. An attack has to be approached locally. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1222 for this issue.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2020-31025). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.8
VulDB Temp Score: 7.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Default permission
CWE: CWE-276 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/03/2026 CVE reserved
02/05/2026 +2 days Advisory disclosed
02/05/2026 +0 days VulDB entry created
02/06/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: 48283
Researcher: chuyreds
Status: Not defined

CVE: CVE-2020-37129 (🔒)
GCVE (CVE): GCVE-0-2020-37129
GCVE (VulDB): GCVE-100-344525
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/05/2026 17:58
Updated: 02/06/2026 09:39
Changes: 02/05/2026 17:58 (81), 02/06/2026 09:39 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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