Memory Safety Vulnerability in BACnet Stack Library by BACnet
CVE-2026-52790

7.5HIGH

Key Information:

Vendor

Bacnet-stack

Status
Bacnet-stack
Vendor
CVE Published:
13 November 2026

What is CVE-2026-52790?

The BACnet Stack library, used for implementing the BACnet protocol in embedded systems, contains a memory safety issue that can be exploited from an unmodified sample server over BACnet/IP. Specifically, this vulnerability manifests as a stack-use-after-return condition in the writable Device string properties. Users are urged to upgrade to versions 1.4.5, 1.5.1, or 1.6.0 to mitigate this risk and ensure the safe operation of their BACnet applications.

Affected Version(s)

bacnet-stack < 1.4.5 < 1.4.5

bacnet-stack < 1.5.1 < 1.5.1

bacnet-stack < 1.6.0 < 1.6.0

References

https://github.com/bacnet-stack/bacnet-stack/security/adv...
x_refsource_CONFIRM
https://github.com/bacnet-stack/bacnet-stack/pull/1375
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CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.