CVE-2018-12087

lowpriority · track · 21EPSS 0.003 · 21 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.29% (21st) EPSS

CVSS 2.1 · low

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

Failure to validate certificates in OPC Foundation UA Client Applications communicating without security allows attackers with control over a piece of network infrastructure to decrypt passwords.

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.1–5.3

v2.02.1lowAV:L/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 2.9

v3.05.3mediumCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 0.9 · impact 4

v3.05.3mediumCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:Nsecondary · OSV

v3.04.9mediumCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-295USprimaryCWE-295US

affected products (4)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
opcfoundation ua-.net-legacy≥ 1.03.342nvdUScpe:2.3:a:opcfoundation:ua-.net-legacy:*:*:*:*:*:*:*:*
opcfoundation ua-.netstandard≥ 1.4.353.15nvdUScpe:2.3:a:opcfoundation:ua-.netstandard:*:*:*:*:*:*:*:*
NuGet OPCFoundation.NetStandard.Opc.Ua< 1.4.353.15osvUSpkg:nuget/OPCFoundation.NetStandard.Opc.Ua

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-8336-mxp6-v5h9Moderate severity vulnerability that affects OPCFoundation.NetStandard.Opc.Ua2018-10-16ghsa · osvUS
Failure to validate certificates in OPC Foundation UA Client Applications communicating without security allows attackers with control over a piece of network infrastructure to decrypt passwords.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2018-10-03modified 2026-06-17

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+1889 more

references (3)

External citations — patches, advisories, analysis.

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