CVE-2026-47259
Published:November 12, 2026
Updated:November 13, 2026
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4, 1.5.1, and 1.6.0, a RemoveListElement request targeting Notification-Class.recipient-list can trigger a stack-based out-of-bounds write in the current master branch when the request contains more than NC_MAX_RECIPIENTS valid BACnetDestination elements. This issue has been patched in versions 1.4.4, 1.5.1, and 1.6.0.
Affected Packages
https://github.com/bacnet-stack/bacnet-stack.git (GITHUB):
Affected version(s) >=bacnet-stack-1.1.0 <bacnet-stack-1.4.4Fix Suggestion:
Update to version bacnet-stack-1.4.4https://github.com/bacnet-stack/bacnet-stack.git (GITHUB):
Affected version(s) =bacnet-stack-1.5.0 <bacnet-stack-1.5.1Fix Suggestion:
Update to version bacnet-stack-1.5.1Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
HIGH