CVE-2026-47711

HIGH
MEDIUM Priority: 0.02 BB Relevance: 77/100
Published: 2026-11-12 Modified: 2026-11-13 First seen: 2026-11-12 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: Low
I: Low
A: High

Description

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, the current master demo server can be crashed remotely over BACnet/IP by sending a valid Confirmed WriteProperty request that updates loop-1's controlled-variable-reference to point to life-safety-zone-1 / accepted-modes. This issue has been patched in versions 1.4.4, 1.5.1, and 1.6.0.

Weakness Classification (4)

Affected Software (6)

Bug Bounty Relevance

77 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

8.6 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

EPSS — Exploitation Probability

0.28%
Raw Score 0.002820
Percentile 21.0%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00282
2026-11-13
0.00282

Intelligence Sources

mitre ref →
nvd ref →