---
id: "CVE-2026-52787"
page: "https://infrastack.ai/live/CVE-2026-52787"
kind: "vulnerability"
aliases: ["CVE-2026-52787"]
title: "BACnet Stack: out-of-bounds write when encoding device address-binding property"
severity: "high"
cvss: 7.5
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["bacnet", "c", "embedded", "package"]
not_affected_if: ["unused-library"]
published_at: "2026-11-13T16:19:02+00:00"
first_seen_at: "2026-11-13T16:47:34+00:00"
updated_at: "2026-11-13T16:48:36+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52787", "first_seen_at": "2026-11-13T16:47:34+00:00"}]
exploit_sources: []
---

# BACnet Stack: out-of-bounds write when encoding device address-binding property

Link for people: https://infrastack.ai/live/CVE-2026-52787 (this .md is for agents)

BACnet Stack is a C library for building BACnet building-automation devices. A reachable out-of-bounds write when encoding the device.address-binding property can corrupt memory, which may let an attacker crash or take over the device running it.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the BACnet Stack version your device or firmware is built from; versions before `1.4.5`, `1.5.1`, and `1.6.0-rc2` are affected.
- Check whether your build includes the device object address-binding property encoding (unknown whether this is on by default).

## Fix

- Upgrade to `1.4.5`, `1.5.1`, or `1.6.0-rc2`, matching your release branch.

## Timeline

- 2026-11-13T16:47:34+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-52787

## Documents

- [advisory] Vendor advisory: github.com https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-4fgg-fghm-jm43

## From the sources

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.5, 1.5.1, and 1.6.0-rc2, a reachable out-of-bounds write exists when encoding the device.address-binding property. This issue has been patched in versions 1.4.5, 1.5.1, and 1.6.0-rc2.

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