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    CVE-2023-43683

    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.

    Published:Aug 14, 2025
    Last Modified:Apr 15, 2026
    EPS:Aug 14, 2025
    EPSS Score:0.00054
    CVSS Score:6.5

    Affected Products

    Vendor
    Malwarebytes
    Product
    Malwarebytes

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

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    CVE-2021-43768 (CVSS 5.3) — In Malwarebytes For Teams v.1.0.990 and before and fixed in v.1.0.1003 and later a privilege escalation can oc…
    CVE-2023-43692 (CVSS 7.5) — An issue was discovered in Malwarebytes before 4.6.14.326 and before 5.1.5.116 (and Nebula 2020-10-21 and late…
    CVE-2023-43687 (CVSS 6.5) — An issue was discovered in Malwarebytes before 4.6.14.326 and before 5.1.5.116 (and Nebula 2020-10-21 and late…
    CVE-2023-43694 (CVSS 5.2) — An issue was discovered in Malwarebytes 4.6.14.326 and before and 5.1.5.116 and before (and Nebula 2020-10-21 …
    CVE-2023-29147 (CVSS 5.5) — In Malwarebytes EDR 1.0.11 for Linux, it is possible to bypass the detection layers that depend on inode ident…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High