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CVE-2026-47257
Published:November 12, 2026
Updated:November 13, 2026
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. In versions 1.5.0 and 1.6.0-rc1, there is a restore logic flaw in bacnet-stack that is reachable through the official, unmodified apps/server management path when BACNET_BACKUP_RESTORE is enabled. This issue has been patched in versions 1.5.1 and 1.6.0.
Affected Packages
https://github.com/bacnet-stack/bacnet-stack.git (GITHUB):
Affected version(s) =bacnet-stack-1.5.0 <bacnet-stack-1.5.1
Fix Suggestion:
Update to version bacnet-stack-1.5.1
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CVSS v4
Base Score:
7.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Check for Unusual or Exceptional Conditions
Always-Incorrect Control Flow Implementation
EPSS
Base Score:
0.39