CVE-2019-12480Bacnet Protocol Stack Out-of-Bounds Read
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.
Published May 30, 2019 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2019-12480 is a high-severity vulnerability (CVSS 7.5 v3) affecting Bacnet Protocol Stack (Bacnet Protocol Stack Project).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 34% probability of exploitation in the next 30 days.
- Fixed versions are available, including Bacnet Protocol Stack <=0.8.6, Bacnet Protocol Stack 0.8.6.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (30-day exploit likelihood)
34%
Higher than 98.3% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
34/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
1
Reports of active use
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
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Bacnet Protocol StackBacnet Protocol Stack Project | See advisory | 0.8.6 |
Patched Releases
Bacnet Protocol Stack
<=0.8.6
Timeline
Publicly disclosed
May 30, 2019
Last updated
Nov 21, 2024
Weakness Type
- CWE-125 Out-of-bounds Read
References
- exploitsourceforge.net · 62
- exploitExploitDB-47148
- other1modm.github.io · CVE-2019-12480
- otherpacketstormsecurity.com · BACnet-Stack-0.8.6-Denial-Of-Service.html
- othersourceforge.net · 3220
FAQ
Common Questions.
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.
Affected: Bacnet Protocol Stack (Bacnet Protocol Stack Project). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Bacnet Protocol Stack <=0.8.6, Bacnet Protocol Stack 0.8.6.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2019-12480 On Your Attack Surface?
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