BACnet Stack: Stack-based buffer overflow in Notification Class RemoveListElement recipient-list decoding

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-47259
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-12 20:18:40 UTC
Updated2026-11-13 23:17:19 UTC
DescriptionBACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4, 1.5.1, and 1.6.0, a RemoveListElement request targeting Notification-Class.recipient-list can trigger a stack-based out-of-bounds write in the current master branch when the request contains more than NC_MAX_RECIPIENTS valid BACnetDestination elements. This issue has been patched in versions 1.4.4, 1.5.1, and 1.6.0.

Risk And Classification

Primary CVSS: v3.1 8.2 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Problem Types: CWE-121 | CWE-787 | CWE-121 CWE-121: Stack-based Buffer Overflow | CWE-787 CWE-787: Out-of-bounds Write

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
3.1CNADECLARED8.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Bacnet-stack Bacnet-stack affected < 1.4.4 Not specified
CNA Bacnet-stack Bacnet-stack affected < 1.5.1 Not specified
CNA Bacnet-stack Bacnet-stack affected < 1.6.0 Not specified

References

ReferenceSourceLinkTags
github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-9w9m-w7w5-... [email protected] github.com
github.com/bacnet-stack/bacnet-stack/pull/1353 [email protected] github.com
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