VDB-437160 · CVE-2026-52790 · GCVE-0-2026-52790

bacnet-stack BACnet Stack up to 1.4.4/1.5.0 Device apps/server-basic/main.c stack-based overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3	$0-$5k	0.22+

Summaryinfo

A vulnerability labeled as problematic has been found in bacnet-stack BACnet Stack up to 1.4.4/1.5.0. This impacts an unknown function of the file apps/server-basic/main.c of the component Device. The manipulation results in stack-based overflow. This vulnerability is known as CVE-2026-52790. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in bacnet-stack BACnet Stack up to 1.4.4/1.5.0. Affected is an unknown part of the file apps/server-basic/main.c of the component Device. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. The product writes past the end of a buffer that was allocated on the stack. This is going to have an impact on availability. CVE summarizes:

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, there is a library-level memory safety issue that is reachable from an unmodified official sample server (apps/server-basic/main.c) over BACnet/IP resulting in a stack-use-after-return in writable Device string properties. This issue has been patched in versions 1.4.5, 1.5.1, and 1.6.0.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-52790 since 06/08/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

Upgrading to version 1.4.5, 1.5.1 or 1.6.0 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

bacnet-stack

Name

BACnet Stack

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (GitHub_M): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: BACnet Stack 1.4.5/1.5.1/1.6.0

Timelineinfo

06/08/2026 CVE reserved
11/13/2026 +158 days Advisory disclosed
11/13/2026 +0 days VulDB entry created
11/13/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CNA: GitHub_M
CVE: CVE-2026-52790 (🔒)

GCVE (CVE): GCVE-0-2026-52790
GCVE (VulDB): GCVE-100-437160

Entryinfo

Created: 11/13/2026 17:17
Changes: 11/13/2026 17:17 (65)
Complete: 🔍
Cache ID: 216::103