CVE-2026-102612
HIGH
MEDIUM
Priority: 0.03
BB Relevance:
66/100
Published: 2026-11-13
Modified: 2026-11-13
First seen: 2026-11-13
Status: active
Attack Surface
Network
No Auth
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
None
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.6, 1.5.2, and 1.6.1, bws_srv_start() in ports/linux/websocket-srv.c builds the libwebsockets server context with a CA certificate loaded but never sets LWS_SERVER_OPTION_REQUIRE_VALID_OPENSSL_CLIENT_CERT, so the hub accepts TLS connections from clients presenting no certificate at all. Any network-reachable host can join the BACnet/SC mesh without credentials. This issue has been patched in versions 1.4.6, 1.5.2, 1.6.1, and 1.7.0.
Weakness Classification (1)
Affected Software (3)
| Vendor | Product | Version |
|---|---|---|
| bacnet-stack | bacnet-stack | < 1.4.6 |
| bacnet-stack | bacnet-stack | >= 1.5.0, < 1.5.2 |
| bacnet-stack | bacnet-stack | >= 1.6.0, < 1.6.1 |
References & Advisories (2)
x_refsource_MISC
x_refsource_CONFIRM