Security Operations
Threat Intelligence
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CVE-2026-118147 Visual Studio Spoofing Vulnerability

<p>Improper certificate validation in Visual Studio allows an unauthorized attacker to perform spoofing over a network.</p>
HIGH
Severity & confidence
Source severitylow
Platform severityhigh
Confidencehigh
Exploitationunknown
CVSS-
Affected
Reporting sources (2)
Microsoft Security Response Center - Update Guide
Open source โ†—
NIST NVD - National Vulnerability Database
Open source โ†—
Timeline & provenance
Published2026-10-30T07:00:00
Last updated2026-11-06T18:12:48
Ingested2026-10-30T19:08:25
FreshnessNEAR-REAL-TIME
Threat typevulnerability
Recommended action
No recommended action published with this item - review the original source.
Next steps
  1. Identify affected systems in your environment.
  2. Apply the vendor patch or mitigation guidance.
  3. Review logs for indicators described in the advisory.
  4. Follow the affected vendor/product to track updates.
Confidence explanation
Reported by a government or cert-grade source (CISA, NCSC, NVD, ENISA, MSRC).
Source type: vendor ยท Original: Microsoft Security Response Center - Update Guide