CVE-2026-26264: Out-of-bounds Read

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.5.0rc4 and 1.4.3rc2, a malformed WriteProperty request can trigger a length underflow in the BACnet stack, leading to an out‑of‑bounds read and a crash DoS. The issue is in wp.c within...

CVE-2026-21878: Improper Limitation of a Pathname to a Restricted Directory

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.5.0.rc3, a vulnerability has been discovered in BACnet Stack's file writing functionality where there is no validation of user-provided file paths, allowing attackers to write files to arbitrary...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read via the npduisexpectedreply function. An attacker can cause a crash or misroute replies by sending specially crafted PDUs that trigger out-of-bounds reads. Remediation A fix was pushed into the master branch but not y...

CVE-2025-66624 BACnet-stack MS/TP reply matcher OOB read

BACnet Protocol Stack library provides a BACnet application layer, network layer and media access MAC layer communications services. Prior to 1.5.0.rc2, The npduisexpectedreply function in src/bacnet/npdu.c indexes requestpduoffset+2/3/5 and replypduoffset+1/2/4 without verifying that those APDU...

CVE-2025-66624

CVE-2025-66624 affects the BACnet Protocol Stack prior to 1.5.0.rc2. The npdu_is_expected_reply function indexes APDU bytes (request_pdu[offset+2/3/5] and reply_pdu[offset+1/2/4]) without validating existence, allowing out-of-bounds reads in tiny PDUs. This can cause an immediate crash (DoS) on A...

CVE-2025-66624 BACnet-stack MS/TP reply matcher OOB read

BACnet Protocol Stack library provides a BACnet application layer, network layer and media access MAC layer communications services. Prior to 1.5.0.rc2, The npduisexpectedreply function in src/bacnet/npdu.c indexes requestpduoffset+2/3/5 and replypduoffset+1/2/4 without verifying that those APDU...

BACnet Stack buffer error vulnerability

BACnet Stack is a BACnet open source protocol stack C library for embedded systems, Linux, MacOS, BSD and Windows. A buffer error vulnerability exists in BACnet Stack versions prior to 1.5.0.rc2, which stems from the npduisexpectedreply function failing to validate the presence of an APDU byte,...

CVE-2023-51773

BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacappdecodeapplicationdata in bacapp.c...

CVE-2023-51773

BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacappdecodeapplicationdata in bacapp.c...

BACnet Stack Security Vulnerability

BACnet Stack is a BACnet open source protocol stack C library for embedded systems, Linux, MacOS, BSD and Windows. A security vulnerability exists in BACnet Stack versions prior to 1.3.2 that stems from the presence of buffer over-reads...

CVE-2023-51773

BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacappdecodeapplicationdata in bacapp.c...

CVE-2023-51773

BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacappdecodeapplicationdata in bacapp.c...

CVE-2023-51773

The BACnet Stack , an open-source protocol stack library for embedded systems, Linux, MacOS, BSD, and Windows, is vulnerable to an APDU buffer over-read in versions prior to 1.3.2 . The root cause is located in the bacapp_decode_application_data function within the bacapp.c file. This vulnerabili...

CVE-2023-51773

BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacappdecodeapplicationdata in bacapp.c...

CVE-2023-51773: Buffer Over-read

BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacappdecodeapplicationdata in bacapp.c...

CVE-2023-0053

SAUTER Controls Nova 200–220 Series with firmware version 3.3-006 and prior and BACnetstac version 4.2.1 and prior have only FTP and Telnet available for device management. Any sensitive information communicated through these protocols, such as credentials, is sent in cleartext. An attacker could...

BACnet Test Server 1.01 - Remote Denial of Service Exploit

Title: BACnet Test Server 1.01 - Remote Denial of Service PoC Author: LiquidWorm Vendor: https://www.bac-test.com Product link: https://sourceforge.com/projects/bacnetserver CVE: N/A !/usr/bin/perl BACnet Test Server 1.01 Remote Denial of Service Exploit Vendor: BACnet Interoperability Test...

BACnet Stack 0.8.6 - Denial of Service

BACnet Stack 0.8.6 - Denial of Service Exploit Title: BACnet Stack 0.8.6 - Denial of Service Google Dork: if applicable Date: 2019-07-19 Exploit Author: mmorillo Vendor Homepage: https://sourceforge.net/p/bacnet/ Software Link:...

CVE-2019-12480

BACnet Protocol Stack through 0.8.6 has a segmentation fault leading to denial of service in BACnet APDU Layer because a malformed DCC in AtomicWriteFile, AtomicReadFile and DeviceCommunicationControl services. An unauthenticated remote attacker could cause a denial of service bacserv daemon cras...