CVE-2026-47710
BACnet Stack: Loop reference to long Structured View description causes stack-buffer-overflow
BACnet 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 stack-buffer-overflow can be triggered in the current master branch when a Loop object reads a referenced property through its default timer path and the referenced property is OBJECT_STRUCTURED_VIEW / PROP_DESCRIPTION containing a long attacker-controlled string. This issue has been patched in versions 1.4.4, 1.5.1, and 1.6.0.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| bacnet-stack bacnet-stack |
< 1.4.4 (affected) < 1.5.1 (affected) < 1.6.0 (affected) |
CNA: GitHub_M |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 8.2 high |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H | CNA: GitHub_M |
| 3.1 / 8.2 high |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H | NVD: [email protected] |
Exploit evidence
- https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-2xm5-gjpc-9m6q
exploit · ADP: CISA-ADP
References
- https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-2xm5-gjpc-9m6qCNA: GitHub_M · x_refsource_CONFIRM
- https://github.com/bacnet-stack/bacnet-stack/pull/1355CNA: GitHub_M · x_refsource_MISC
- https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-2xm5-gjpc-9m6qADP: CISA-ADP · exploit
- https://github.com/bacnet-stack/bacnet-stack/pull/1355[email protected]
- https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-2xm5-gjpc-9m6q[email protected]
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