Malwarebytes prior 4.6.14.326/5.1.5.116/2020-10-21 race condition

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Malwarebytes. This affects an unknown function. The manipulation leads to race condition. This vulnerability is uniquely identified as CVE-2023-43687. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Malwarebytes and classified as problematic. This issue affects some unknown processing. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in Malwarebytes before 4.6.14.326 and before 5.1.5.116 (and Nebula 2020-10-21 and later). There is a Race condition that leads to code execution because of a lack of locks between file verification and execution.

It is possible to read the advisory at malwarebytes.com. The identification of this vulnerability is CVE-2023-43687 since 09/21/2023. The exploitation is known to be difficult. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 4.6.14.326, 5.1.5.116 or 2020-10-21 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.4

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Malwarebytes 4.6.14.326/5.1.5.116/2020-10-21

Timelineinfo

09/21/2023 CVE reserved
08/14/2025 +693 days Advisory disclosed
08/14/2025 +0 days VulDB entry created
08/14/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: malwarebytes.com
Status: Confirmed

CVE: CVE-2023-43687 (🔒)
GCVE (CVE): GCVE-0-2023-43687
GCVE (VulDB): GCVE-100-320207

Entryinfo

Created: 08/14/2025 19:53
Changes: 08/14/2025 19:53 (52)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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