High severity8.1NVD Advisory· Published Nov 12, 2026· Updated Nov 12, 2026

CVE-2026-47257

Description

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. In versions 1.5.0 and 1.6.0-rc1, there is a restore logic flaw in bacnet-stack that is reachable through the official, unmodified apps/server management path when BACNET_BACKUP_RESTORE is enabled. This issue has been patched in versions 1.5.1 and 1.6.0.

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Affected products

Bacnetstack/Bacnet Stackllm-fuzzy
Range: <1.5.1, <1.6.0

Patches

Vulnerability mechanics

References

github.com/bacnet-stack/bacnet-stack/pull/1352nvd
github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-x6pp-3pf3-f87rnvd

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cvss	0.526
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000