Remote Denial-of-Service Flaw in BACnet Stack Library by BACnet
CVE-2026-49341

7.5HIGH

Key Information:

Vendor

Bacnet-stack

Status
Bacnet-stack
Vendor
CVE Published:
13 November 2026

What is CVE-2026-49341?

The BACnet Stack library, an open source protocol stack C library for embedded systems, contains a remotely reachable denial-of-service vulnerability in its default demo server prior to version 1.5.1. This flaw allows attackers to disrupt service by exploiting the unmodified demo server's code, leading to potential service unavailability. Users should upgrade to version 1.5.1 or later to mitigate this risk effectively.

Affected Version(s)

bacnet-stack < 1.5.1

References

https://github.com/bacnet-stack/bacnet-stack/security/adv...
x_refsource_CONFIRM
https://github.com/bacnet-stack/bacnet-stack/pull/1347
x_refsource_MISC

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

.