CVE-2019-12480
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…
- 7.5HighCVSS base score
- 33.9%Exploitation in 30 daysEPSS · top 1.6% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Show the exploits1
Exploit-DB1 entry
- BACnet Stack 0.8.6 - Denial of Service (Exploit-DB entry) (opens in a new tab)
EDB-ID 47148dos, linuxpublished 22 Jul 2019Not verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
Published
- 5 years later
· 5 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 33.9% · top 1.6% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
References
7
- https://sourceforge.net/p/bacnet/bugs/62/ (opens in a new tab)x_refsource_MISCx_transferred
- https://sourceforge.net/p/bacnet/code/3220 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://sourceforge.net/p/bacnet/code/3223 (opens in a new tab)x_refsource_MISCx_transferred
- https://sourceforge.net/p/bacnet/code/3224 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://sourceforge.net/p/bacnet/code/3225 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://packetstormsecurity.com/files/153716/BACnet-Stack-0.8.6-Denial-Of-Service.html (opens in a new tab)x_refsource_MISCx_transferred
- https://1modm.github.io/CVE-2019-12480.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2019-4076 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2019-12480)Record last updated .