CVE-2019-12480: n/a vulnerability

CVE-2019-12480: BACnet Protocol Stack through 0.8.6 has a segmentation fault leading to denial of service in BACnet APDU La...

BACnet Protocol Stack through 0.8.6 has a segmentation fault leading to denial of service in BACnet APDU Layer because a malformed DCC in AtomicWriteFile, AtomicReadFile and DeviceCommunicationControl services. An unauthenticated remote attacker could cause a denial of service (bacserv daemon crash) because there is an invalid read in bacdcode.c during parsing of alarm tag numbers.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 4, 2024, 23:24 UTC (UTC+00:00)

Security readout for executives and security teams

This flaw can let an unauthenticated remote attacker crash the BACnet Stack bacserv daemon with malformed BACnet service data. The likely business impact is denial of building automation or BACnet service availability, not data theft. Urgency depends on whether this stack is deployed and reachable on operational networks. Exposure is most likely where BACnet Protocol Stack through 0.8.6 or bacserv is deployed in BACnet-enabled building automation, OT lab, or integration environments and accepts remote BACnet traffic. Prioritize if BACnet systems support facility operations, safety-adjacent automation, or customer-facing service availability. If deployment is isolated or absent, track as routine hygiene. Mitigation focus: Identify any BACnet Protocol Stack or bacserv deployments and versions.; Check SourceForge project guidance and referenced revisions for fixed code availability.; Restrict BACnet/bacserv network access to trusted management segments only..

Prepared: Jun 6, 2026, 20:55 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 30, 2019, 21:53 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

7Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://sourceforge.net/p/bacnet/bugs/62/CVE reference · x_refsource_MISC
https://sourceforge.net/p/bacnet/code/3220CVE reference · x_refsource_CONFIRM
https://sourceforge.net/p/bacnet/code/3223CVE reference · x_refsource_MISC
https://sourceforge.net/p/bacnet/code/3224CVE reference · x_refsource_CONFIRM
https://sourceforge.net/p/bacnet/code/3225CVE reference · x_refsource_CONFIRM
https://1modm.github.io/CVE-2019-12480.htmlCVE reference · x_refsource_MISC

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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