CVE-2019-12480

Public Exploit

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 20.35% Top 5%
Third-Party Advisory sourceforge.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://sourceforge.net/p/bacnet/bugs/62/ third party advisory exploit
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

Frequently Asked Questions

What is the severity of CVE-2019-12480?
CVE-2019-12480 has been scored as a high severity vulnerability.
How to fix CVE-2019-12480?
To fix CVE-2019-12480, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-12480 being actively exploited in the wild?
It is possible that CVE-2019-12480 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~20% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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