CVE-2019-12480 EXPLOIT
7.5
HIGH · CVSS 3.0 · EPSS 33.9% (pctl 98)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 7.5 (HIGH, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 33.89% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-125 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2019-05-30 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| bacnet protocol stack project | bacnet protocol stack |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | BACnet Stack 0.8.6 - Denial of Service | 2019-07-22 |
References
- http://packetstormsecurity.com/files/153716/BACnet-Stack-0.8.6-Denial-Of-Service.html
- https://1modm.github.io/CVE-2019-12480.html
- https://sourceforge.net/p/bacnet/bugs/62/
- https://sourceforge.net/p/bacnet/code/3220
- https://sourceforge.net/p/bacnet/code/3223
- https://sourceforge.net/p/bacnet/code/3224
- https://sourceforge.net/p/bacnet/code/3225
- http://packetstormsecurity.com/files/153716/BACnet-Stack-0.8.6-Denial-Of-Service.html
- https://1modm.github.io/CVE-2019-12480.html
- https://sourceforge.net/p/bacnet/bugs/62/
- https://sourceforge.net/p/bacnet/code/3220
- https://sourceforge.net/p/bacnet/code/3223
- https://sourceforge.net/p/bacnet/code/3224
- https://sourceforge.net/p/bacnet/code/3225
→ the Explorer · watch your stack · NVD