CVE-2026-47259

CVSS 8.2 (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, 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.

Weakness: CWE-121, CWE-787

Source: NVD CVE-2026-47259

References

• https://github.com/bacnet-stack/bacnet-stack/pull/1353
• https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-9w9m-w7w5-rrv3

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