CVE-2026-41475 BACnet Stack: Out-of-Bounds Read in WritePropertyMultiple Decoder via Deprecated Tag Parser

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, an out-of-bounds read vulnerability in bacnet-stack's WritePropertyMultiple service decoder allows unauthenticated remote attackers to read past allocated buffer boundaries by sending a truncated W...

CVE-2026-41475

Summary: CVE-2026-41475 affects the BACnet Stack library. Prior to version 1.4.3, the WritePropertyMultiple service decoder is vulnerable to an out-of-bounds read caused by wpm_decode_object_property() invoking the deprecated decode_tag_number_and_value() function, which performs no bounds checki...

EUVD-2026-25621

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, an out-of-bounds read vulnerability in bacnet-stack's WritePropertyMultiple service decoder allows unauthenticated remote attackers to read past allocated buffer boundaries by sending a truncated W...

BACnet Stack 缓冲区错误漏洞

BACnet Stack is an open-source protocol stack for BACnet, designed to work on embedded systems, Linux, MacOS, BSD, and Windows. Versions prior to BACnet Stack 1.4.3 contained a buffer error vulnerability. This vulnerability stems from a out-of-bounds read vulnerability in the ReadPropertyMultiple...

BACnet Stack 缓冲区错误漏洞

BACnet Stack is an open-source protocol stack for BACnet, designed to work on embedded systems, Linux, MacOS, BSD, and Windows. Versions prior to BACnet Stack 1.4.3 contained a buffer error vulnerability. This vulnerability stems from a boundary-crossing read issue in the ReadPropertyMultiple...

PT-2026-35074

Name of the Vulnerable Software and Affected Versions BACnet Stack versions prior to 1.4.3 Description An out-of-bounds read exists in the WritePropertyMultiple service decoder. This occurs because the wpm decode object property function calls the deprecated decode tag number and value function,...

BACnet Stack 缓冲区错误漏洞

BACnet Stack is an open-source protocol stack for BACnet, designed for use in embedded systems, Linux, MacOS, BSD, and Windows. Versions prior to BACnet Stack 1.4.3 contained a buffer error vulnerability. This vulnerability stems from a out-of-bounds read vulnerability in the decoder of the...

Reliance on Undefined, Unspecified, or Implementation-Defined Behavior

Overview Affected versions of this package are vulnerable to Reliance on Undefined, Unspecified, or Implementation-Defined Behavior via the decodesigned32 function in src/bacnet/bacint.c that reconstructs a 32-bit signed integer from four APDU bytes using signed left shifts. When any of the four...

CVE-2026-40279

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, decodesigned32 in src/bacnet/bacint.c reconstructs a 32-bit signed integer from four APDU bytes using signed left shifts. When any of the four bytes has bit 7 set value ≥ 0x80, the left-shift...

EUVD-2026-24166

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, decodesigned32 in src/bacnet/bacint.c reconstructs a 32-bit signed integer from four APDU bytes using signed left shifts. When any of the four bytes has bit 7 set value ≥ 0x80, the left-shift...

CVE-2026-40279 BACnet Stack: Undefined-behavior signed left shift in `decode_signed32()`

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, decodesigned32 in src/bacnet/bacint.c reconstructs a 32-bit signed integer from four APDU bytes using signed left shifts. When any of the four bytes has bit 7 set value ≥ 0x80, the left-shift...

CVE-2026-40279 BACnet Stack: Undefined-behavior signed left shift in `decode_signed32()`

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, decodesigned32 in src/bacnet/bacint.c reconstructs a 32-bit signed integer from four APDU bytes using signed left shifts. When any of the four bytes has bit 7 set value ≥ 0x80, the left-shift...

CVE-2026-40279

BACnet Stack (open-source C library for embedded systems) contains a defect in decode_signed32() in src/bacnet/bacint.c where reconstructing a 32-bit signed integer from four APDU bytes via signed left shifts can overflow signed int32_t when any byte has bit 7 set (>= 0x80). This undefined beh...

CVE-2026-40279

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, decodesigned32 in src/bacnet/bacint.c reconstructs a 32-bit signed integer from four APDU bytes using signed left shifts. When any of the four bytes has bit 7 set value ≥ 0x80, the left-shift...

BACnet Stack 安全漏洞

BACnet Stack is an open-source protocol stack for BACnet that is suitable for embedded systems, Linux, MacOS, BSD, and Windows. Versions prior to BACnet Stack 1.4.3 contained a security vulnerability. This vulnerability arises from the decodesigned32 function in src/bacnet/bacint.c, which uses...

PT-2026-34009

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.4.3, decode signed32 in src/bacnet/bacint.c reconstructs a 32-bit signed integer from four APDU bytes using signed left shifts. When any of the four bytes has bit 7 set value ≥ 0x80, the left-shift...

CVE-2026-32666

WebCTRL systems that communicate over BACnet inherit the protocol's lack of network layer authentication. WebCTRL does not implement additional validation of BACnet traffic so an attacker with network access could spoof BACnet packets directed at either the WebCTRL server or associated...

CVE-2026-24060

Service information is not encrypted when transmitted as BACnet packets over the wire, and can be sniffed, intercepted, and modified by an attacker. Valuable information such as the File Start Position and File Data can be sniffed from network traffic using Wireshark's BACnet dissector filter. Th...

Automated Logic WebCtrl 安全漏洞

Automated Logic WebCtrl is a web-based building automation system server developed by Automated Logic Corporation in the United States. Automated Logic WebCtrl has a security vulnerability, which stems from the unencrypted transmission of BACnet data packets. This vulnerability could allow...

CVE-2026-24060

Service information is not encrypted when transmitted as BACnet packets over the wire, and can be sniffed, intercepted, and modified by an attacker. Valuable information such as the File Start Position and File Data can be sniffed from network traffic using Wireshark's BACnet dissector filter. Th...