CVE-2018-12086

HIGHNVD 7.57.5—Elevated

7.5

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

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 96.3%
KEV: Not listed

Published

September 14, 2018

Last Modified

November 21, 2024

References (10)

cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
cve@mitrehttp://www.securityfocus.com/bid/105538
cve@mitrehttp://www.securitytracker.com/id/1041909
cve@mitrehttps://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2018-12086.pdf
cve@mitrehttps://www.debian.org/security/2018/dsa-4359
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/105538
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1041909
af854a3a-2127-422b-91ae-364da2661108https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2018-12086.pdf
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2018/dsa-4359

Affected Packages

(1 across 1 ecosystem)

NuGet(1)

Package	Vulnerable range	Fixed in	Dependents
OPCFoundation.NetStandard.Opc.Ua	0.4.0 ... 1.4.353.14 (20 versions)	1.4.353.15	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-787Out-of-bounds Write

Data Freshness Timeline

(refreshed 7× in last 7d / 14× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 03:08 UTCEG score recompute
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 04:46 UTCOSV refresh

Frequently asked(5)

What is CVE-2018-12086?

CVE-2018-12086 is a high vulnerability published on September 14, 2018. Buffer overflow in OPC UA applications allows remote attackers to trigger a stack overflow with carefully structured requests.

When was CVE-2018-12086 disclosed?

CVE-2018-12086 was first published in the National Vulnerability Database on September 14, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-12086 actively exploited?

CVE-2018-12086 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 96.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-12086?

CVE-2018-12086 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2018-12086?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-12086, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2018-12086

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CVE-2018-12086

📅 Published

🔄 Last Modified

🔗 References (10)

Affected Packages

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-12086?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (10)

Frequently asked(5)

Related CVEs(same CWE)