CVE-2023-43687
Medium
Published: 14 August 2025
Published
14 August 2025
Modified
15 April 2026
KEV Added
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Patch
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CVSS Score v3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS Score
0.0040
61.2th percentile
Risk Priority
13
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2023-43687 is a medium-severity Race Condition During Access to Alternate Channel (CWE-421) vulnerability in Malwarebytes (inferred from references). Its CVSS base score is 6.5 (Medium).
Operationally, ranked in the top 38.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-48068
Vulnerability details
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.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Malwarebytes
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inferred from references and description; NVD did not file a CPE for this CVE
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.