HIGHCVSS v3.1 8.8Vulnerability

CVE-2026-82414

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. From versions 1.4.0 to before 1.4.6, 1.5.0 to before 1.5.1, and 1.6.0 to before 1.6.1, the BACnet MS/TP receive path decodes COBS frames into an output pointer inside the same fixed input buffer, but passes the full input-buffer size as the decode capacity. A long valid COBS payload can therefore write past the end of the actual remaining buffer. This issue has been patched in versions 1.4.6, 1.5.1, 1.6.1, and 1.7.0.

Properties

Severity
HIGH
Nvd fetched at
2026-11-14T00:40:25.638091+00:00
Cvss severity
HIGH
Cvss score
8.8
Retrieved at
2026-11-14T00:50:05+00:00
Score
8.8
Cvss version
3.1
Last source
NVD
Cve id
CVE-2026-82414
Cvss vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
First seen by Signal
2026-11-13T20:38:23+00:00
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published at
2026-11-13T19:19:36.740
Last modified
2026-11-13T22:17:26.140

Related Entities (1)

HAS_WEAKNESS (1)

→[Weakness]Out-of-bounds Write

Related research

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CVE-2026-82414 (CVSS v3.1 8.8) — Ninja Signal Threat Intelligence | Ninja Signal