Vulnerability Monitor

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CVE-2018-12086

Buffer overflow in OPC UA applications allows remote attackers to trigger a stack overflow with carefully structured requests.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 5 products from opcfoundation, from opcfoundation, from opcfoundation and 2 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2018-09-14T21:29:03.583

Last Modified

2024-11-21T03:44:33.930

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	opcfoundation	unified_architecture-.net-legacy	≤ 1.03.342	Yes
Application	opcfoundation	unified_architecture-java	≤ 1.03.343	Yes
Application	opcfoundation	unified_architecture_.net-standard	≤ 1.03.352.12	Yes
Application	opcfoundation	unified_architecture_ansic	≤ 1.03.340	Yes
Operating System	debian	debian_linux	9.0	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html ([email protected])
http://www.securityfocus.com/bid/105538 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1041909 Third Party Advisory, VDB Entry ([email protected])
https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2018-12086.pdf Vendor Advisory ([email protected])
https://www.debian.org/security/2018/dsa-4359 Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/105538 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1041909 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2018-12086.pdf Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2018/dsa-4359 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For opcfoundation's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.