THREATPORT/VULNERABILITY/CVE-2019-12480
HIGH SEVERITY

CVE-2019-12480

Bacnet Protocol Stack vulnerability

CVSS
7.5
EPSS
33.7%
EPSS pct
98th
Exploited
No known
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 vendor
Bacnet Protocol Stack Project
Affected product
Bacnet Protocol Stack
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
Published
2019-05-30

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 33.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2019-12480

  • Confirm whether Bacnet Protocol Stack Project Bacnet Protocol Stack is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2019-12480.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-12480

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-12480 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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