CVE-2026-45341
BACnet Stack: NULL pointer dereference in bacnet_device_object_reference_decode() when WriteProperty updates Structured View subordinate-list
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. From versions 1.4.0 to before 1.4.4, and 1.5.0 to before 1.5.1, a NULL pointer dereference can be triggered in bacnet_device_object_reference_decode() when a WriteProperty request updates OBJECT_STRUCTURED_VIEW / PROP_SUBORDINATE_LIST. This issue has been patched in versions 1.4.4 and 1.5.1.
| CWE | CWE-476 |
| Vendor | bacnet-stack |
| Product | bacnet-stack |
| Published | Nov 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
bacnet-stack / bacnet-stack
>= 1.4.0, < 1.4.4 >= 1.5.0, < 1.5.1