bvlc.c in skarg BACnet Protocol Stack bacserv 0.9.1 and 0.8.5 is affected by a Buffer…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
bvlc.c in skarg BACnet Protocol Stack bacserv 0.9.1 and 0.8.5 is affected by a Buffer Overflow because of a lack of packet-size validation. The affected component is bacserv BACnet/IP BVLC forwarded NPDU. The function bvlc_bdt_forward_npdu() calls bvlc_encode_forwarded_npdu() which copies the content from the request into a local in the bvlc_bdt_forward_npdu() stack frame and clobbers the canary. The attack vector is: A BACnet/IP device with BBMD enabled based on this library connected to IP network. The fixed version is: 0.8.6.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:bacnet_protocol_stack_project:bacnet_protocol_stack:0.8.5:*:*:*:*:*:*:* | 0.8.5 | Vulnerable | Bacnet Protocol Stack Project |
- cpe:2.3:a:bacnet_protocol_stack_project:bacnet_protocol_stack:0.8.5:*:*:*:*:*:*:* Versions 0.8.5 Vulnerable ·Bacnet Protocol Stack Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-10238
- 2026-10-03 Alias added: GHSA-433c-j67w-mcg5
References
More Bacnet Protocol Stack Project Bacnet Protocol Stack vulnerabilities
- TI-2019-09320 BACnet Protocol Stack through 0.8.6 has a segmentation fault leading to denial of service… CVSS 3.0HIGH 7.5
Sources
- CVE-2018-10238 · CVE Program
- CVE-2018-10238 · NVD
- FIRST EPSS
- GHSA-433c-j67w-mcg5 · GitHub Advisory Database · CC BY 4.0
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