CVE-2020-36872

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.

CVSS

No CVSS.

References

Link	Resource
https://cxsecurity.com/issue/WLB-2020100045
https://packetstormsecurity.com/files/159504
https://www.bac-test.com/
https://www.exploit-db.com/exploits/48860
https://www.vulncheck.com/advisories/bacnet-test-server-malformed-bvlc-length-dos
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5597.php

Configurations

No configuration.

History

26 Nov 2025, 23:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-11-26 23:15

Updated : 2025-12-01 15:39

NVD link : CVE-2020-36872

Mitre link : CVE-2020-36872

CVE.ORG link : CVE-2020-36872

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

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