BACnet Stack up to 1.4.4/1.5.0 ReadPropertyMultiple handler_read_property_multiple infinite loop

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.22+

Summaryinfo

A vulnerability categorized as problematic has been discovered in BACnet Stack up to 1.4.4/1.5.0. The impacted element is the function handler_read_property_multiple of the component ReadPropertyMultiple. Executing a manipulation can lead to infinite loop. This vulnerability appears as CVE-2026-52789. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in BACnet Stack up to 1.4.4/1.5.0. This vulnerability affects the function handler_read_property_multiple of the component ReadPropertyMultiple. The manipulation with an unknown input leads to a infinite loop vulnerability. The CWE definition for the vulnerability is CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. As an impact it is known to affect 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, a Denial of Service (DoS) vulnerability exists in the BACnet stack's ReadPropertyMultiple (RPM) handler. When processing a malformed RPM request packet that lacks the expected closing tags, the function handler_read_property_multiple enters an infinite loop. This issue has been patched in versions 1.4.5, 1.5.1, and 1.6.0.

The advisory is available at github.com. This vulnerability was named CVE-2026-52789 since 06/08/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

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

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Productinfo

Name

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

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Infinite loop
CWE: CWE-835 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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

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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-2026-52789 (🔒)

GCVE (CVE): GCVE-0-2026-52789
GCVE (VulDB): GCVE-100-437158

Entryinfo

Created: 11/13/2026 17:16
Changes: 11/13/2026 17:16 (64)
Complete: 🔍
Cache ID: 216::103

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