What’s Vulnerable › Vulnerabilities

CVE-2019-12480

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 33.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-05-30 · updated 2026-06-17
• Weakness: CWE-125

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.

Affected products

• Bacnet Protocol Stack Project Bacnet Protocol Stack: through 0.8.6

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

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