PT-2025-33345 · Malwarebytes+1 · Malwarebytes+1

Published 2025-08-14 · Updated 2025-08-16 · CVE-2023-43683

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Name of the Vulnerable Software and Affected Versions: Malwarebytes versions 4.6.14.326 through 5.1.5.116 Nebula versions 2020-10-21 and later

Description: A stack buffer out-of-bounds access issue exists due to an integer underflow when handling newline characters.

Recommendations: Update Malwarebytes to version 5.1.5.116 or later. Update Nebula to a version later than 2020-10-21.

Fix

Out of bounds Read

Stack Overflow

Weakness Enumeration

CWE-125

CWE-121

Related Identifiers

CVE-2023-43683

Affected Products

Malwarebytes

Nebula

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2023-43683 · Security Note
• https://twitter.com/CVEnew/status/1956654826026410275 · Twitter Post
• https://malwarebytes.com/secure/cves/cve-2023-43683 · Note