Description
BACnet Test Server versions up to and including 1.01 contains a remote denial of service vulnerability in its BACnet/IP BVLC packet handling. The server fails to properly validate the BVLC Length field in incoming UDP BVLC frames on the default BACnet port (47808/udp). A remote unauthenticated attacker can send a malformed BVLC Length value to trigger an access violation and crash the application, resulting in a denial of service.
Exploits (1)
References (6)
Scores
CVSS v4
8.7
EPSS
0.0025
EPSS Percentile
48.5%
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-400
Status
published
Products (1)
BACnet Interoperability Test Services, Inc./BACnet Test Server
< 1.01
Published
Nov 26, 2025
Tracked Since
Feb 18, 2026