Microsoft .NET Framework 2.0 SP2, 3.0 SP2, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, .NET Core 1.0 and 2.0, and PowerShell Core 6.0.0 allow a security feature bypass vulnerability due to the way certificates are validated, aka ".NET Security Feature Bypass Vulnerability."
CVE-2018-0786
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 2.0%, top 16% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 88.4%
- KEV
- Not listed
Published
January 10, 2018
Last Modified
November 21, 2024
References (6)
- secure@microsofthttp://www.securityfocus.com/bid/102380
- secure@microsofthttp://www.securitytracker.com/id/1040152
- secure@microsofthttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0786
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/102380
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1040152
- af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0786
Affected Packages
(7 across 1 ecosystem)
NuGet(7)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| Microsoft.NETCore.UniversalWindowsPlatform | 6.0.1, 6.0.2, 6.0.4, 6.0.5 | 6.0.6 | — |
| System.Private.ServiceModel | 4.1.0 | 4.1.1 | — |
| System.ServiceModel.Duplex | 4.0.1 | 4.0.2 | — |
| System.ServiceModel.Http | 4.1.0 | 4.1.1 | — |
| System.ServiceModel.NetTcp | 4.1.0 | 4.1.1 | — |
| System.ServiceModel.Primitives | 4.1.0 | 4.1.1 | — |
| System.ServiceModel.Security | 4.0.1 | 4.0.2 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 8× in last 7d / 41× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:24 UTCEPSS rescore
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- 2026-07-04 15:26 UTCOSV refresh
- 2026-07-04 06:28 UTCEPSS rescore
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- 2026-06-23 21:30 UTCEPSS rescore
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- 2026-06-16 03:09 UTCOSV refresh
- 2026-06-15 17:45 UTCEPSS rescore
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- 2026-05-28 12:46 UTCEG score recompute
- 2026-05-28 12:46 UTCVendor advisory
- 2026-05-27 13:38 UTCEPSS rescore
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- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-25 10:16 UTCOSV refresh
Related CVEs(same vendor + same CWE)
Same vendor
10 shownmsrc
- CVE-2006-10003EG 9.8CRITICAL
- CVE-2015-20107NVD 7.6EG 9.8EPSS 93%HIGH
- CVE-2013-7381EG 9.8CRITICAL
- CVE-2014-0048EG 9.8EPSS 93%CRITICAL
- CVE-2007-4559EG 9.8EPSS 98%CRITICAL
- CVE-2013-3900NVD 5.5EG 9.0 KEVEPSS 99%MEDIUM
- CVE-2013-2094NVD 8.4EG 9.0 KEVEPSS 99%HIGH
- CVE-2014-9356EG 8.6EPSS 91%HIGH
- CVE-2014-5282EG 8.1HIGH
- CVE-2014-8141EG 7.8EPSS 94%HIGH
Same CWE
10 shownCWE-295
Frequently asked(5)
What is CVE-2018-0786?
When was CVE-2018-0786 disclosed?
Is CVE-2018-0786 actively exploited?
What is the CVSS score of CVE-2018-0786?
How do I remediate CVE-2018-0786?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2018-0786
Is Your Infrastructure Affected by CVE-2018-0786?
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