Out-of-bounds Read in Bacnet Protocol Stack Project
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 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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.339 (98.4th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.337 · newest: 0.339 · change: +0.002
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- sourceforge.net/p/bacnet/bugs/62/ (Exploit, Third Party Advisory)
- sourceforge.net/p/bacnet/code/3220
- sourceforge.net/p/bacnet/code/3223
- sourceforge.net/p/bacnet/code/3224
- sourceforge.net/p/bacnet/code/3225
- packetstormsecurity.com/files/153716/BACnet-Stack-0.8.6-Denial-Of-Service.html
- 1modm.github.io/CVE-2019-12480.html
Frequently asked questions
- What is CVE-2019-12480?
- CVE-2019-12480 is a high-severity vulnerability in Bacnet Protocol Stack Project, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2019-05-30.
- How severe is CVE-2019-12480?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2019-12480 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.