BACnet Stack up to 1.4.4/1.5.0 Router IPv6 Application buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.8$0-$5k0.00+

Summaryinfo

A vulnerability classified as critical has been found in BACnet Stack up to 1.4.4/1.5.0. This impacts an unknown function of the component Router IPv6 Application. This manipulation causes buffer overflow. The identification of this vulnerability is CVE-2026-58498. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in BACnet Stack up to 1.4.4/1.5.0. Affected by this vulnerability is some unknown processing of the component Router IPv6 Application. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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 remote global-buffer-overflow in the official router-ipv6 application shipped with bacnet-stack, this results in an out-of-bounds write to the global transmit buffer under ASan. This issue has been patched in versions 1.4.5, 1.5.1, and 1.6.0.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-58498 since 06/30/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

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: 7.9
VulDB Meta Temp Score: 7.8

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.6
CNA Vector (GitHub_M): 🔒

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
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

06/30/2026 CVE reserved
11/13/2026 +136 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-2026-58498 (🔒)

GCVE (CVE): GCVE-0-2026-58498
GCVE (VulDB): GCVE-100-437149

Entryinfo

Created: 11/13/2026 17:14
Changes: 11/13/2026 17:14 (63)
Complete: 🔍
Cache ID: 216::103

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