Malwarebytes prior 4.6.14.326/5.1.5.116/2020-10-21 integer underflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Malwarebytes. Affected by this vulnerability is an unknown functionality. Such manipulation leads to integer underflow. This vulnerability is referenced as CVE-2023-43683. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Malwarebytes. It has been rated as problematic. Affected by this issue is some unknown functionality. The manipulation with an unknown input leads to a integer underflow vulnerability. Using CWE to declare the problem leads to CWE-191. The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. The impact remains unknown. CVE summarizes:

An issue was discovered in Malwarebytes 4.6.14.326 and before 5.1.5.116 (and Nebula 2020-10-21 and later). A Stack buffer out-of-bounds access exists because of an integer underflow when handling newline characters.

The advisory is available at malwarebytes.com. This vulnerability is handled as CVE-2023-43683 since 09/21/2023. The technical details are unknown and an exploit is not available.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-48064). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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: Integer underflow
CWE: CWE-191 / CWE-189
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
08/15/2025 +1 days VulDB entry last update

Sourcesinfo

Advisory: malwarebytes.com
Status: Confirmed

CVE: CVE-2023-43683 (🔒)
GCVE (CVE): GCVE-0-2023-43683
GCVE (VulDB): GCVE-100-320210
EUVD: 🔒

Entryinfo

Created: 08/14/2025 19:54
Updated: 08/15/2025 19:45
Changes: 08/14/2025 19:54 (52), 08/15/2025 19:45 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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