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bacnetstack bacnet stack
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bacnetstack bacnet stack
9 known vulnerabilities across versions
Vulnerabilities are listed by affected version. Select any CVE for the full briefing and its intelligence graph.
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4.0+
7.0+ (High)
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CVE-2026-41503
>= 1.4.0 and < 1.4.3
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, an out-of-bounds read vulnerab
7.5
HIGH
CVE-2026-41502
>= 1.4.0 and < 1.4.3
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, an off-by-one out-of-bounds re
7.5
HIGH
CVE-2026-41475
>= 1.4.0 and < 1.4.3
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, an out-of-bounds read vulnerab
9.1
CRITICAL
CVE-2026-40279
< 1.4.3
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, decode_signed32() in src/bacne
3.7
LOW
CVE-2026-26264
>= 1.4.0 and < 1.4.3
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.5.0rc4 and 1.4.3rc2, a malformed Wr
8.1
HIGH
CVE-2026-21878
all versions
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.5.0.rc3, a vulnerability has been d
7.5
HIGH
CVE-2026-21870
<= 1.4.2
BACnet Protocol Stack library provides a BACnet application layer, network layer and media access (MAC) layer communications servi
5.5
MEDIUM
CVE-2025-66624
all versions
BACnet Protocol Stack library provides a BACnet application layer, network layer and media access (MAC) layer communications servi
7.5
HIGH
CVE-2023-51773
< 1.3.2
BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacapp_decode_application_data in bacapp.c.
9.1
CRITICAL
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