Dashboard / CVE-2026-46674

CVE-2026-46674

HIGH
MEDIUM Priority: 0.03 BB Relevance: 75/100
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: None
I: None
A: High

Description

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4 and 1.5.1, an out-of-bounds read vulnerability exists in bacnet-stack's AtomicWriteFile record-access path. The bug is caused by a mismatch between an externally controlled returnedRecordCount field and the fixed-size internal fileData[] array used by BACNET_ATOMIC_WRITE_FILE_DATA. This issue has been patched in versions 1.4.4 and 1.5.1.

Weakness Classification (2)

Affected Software (4)

VendorProductVersion
bacnet-stack bacnet-stack < 1.4.4
bacnet-stack bacnet-stack < 1.5.1
bacnet-stack bacnet-stack < 1.4.4
bacnet-stack bacnet-stack < 1.5.1

References & Advisories (2)

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.43%
Raw Score 0.004280
Percentile 37.6%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00428
2026-11-13
0.00428

Intelligence Sources

mitre ref →
nvd ref →

External Links