CVE-2026-47217

CVSS 7.5 (high) · published 2026-11-12

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.

Weakness: CWE-20, CWE-400, CWE-674, CWE-754

Source: NVD CVE-2026-47217

References

• https://github.com/bacnet-stack/bacnet-stack/pull/1345
• https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-wjw5-q9g6-2764
• https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-wjw5-q9g6-2764

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