High severity7.5NVD Advisory· Published Nov 12, 2026· Updated Nov 12, 2026

CVE-2026-47217

Description

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4 and 1.5.1, a remote attacker can trigger an uncontrolled recursion and stack overflow in the default server application of bacnet-stack by abusing the Channel object. This issue has been patched in versions 1.4.4 and 1.5.1.

Affected products

Bacnetstack/Bacnet Stackllm-fuzzy
Range: <1.4.4, <1.5.1

Patches

Vulnerability mechanics

References

github.com/bacnet-stack/bacnet-stack/pull/1345nvd
github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-wjw5-q9g6-2764nvd

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cvss	0.488
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000