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    CVE-2023-51773

    BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacapp_decode_application_data in bacapp.c.

    Published:Dec 25, 2023
    Last Modified:May 23, 2025
    EPS:Dec 25, 2023
    EPSS Score:0.00372
    CVSS Score:9.1

    Affected Products

    Vendor
    Bacnetstack
    Product
    Bacnet Stack

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-126 Buffer Over-read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-40279 (CVSS 3.7) — BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, decode_sig…
    CVE-2026-26264 (CVSS 7.8) — BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.5.0rc4 and 1.4.…
    CVE-2026-21878 (CVSS 7.5) — BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.5.0.rc3, a vuln…
    CVE-2026-21870 (CVSS 5.5) — BACnet Protocol Stack library provides a BACnet application layer, network layer and media access (MAC) layer …
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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