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Δ / VULNERABILITY RECORD

CVE-2026-32178.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSHIGH / 7.5No severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Apr 14, 2026

Disclosure summary

Improper neutralization of special elements in .NET allows an unauthorized attacker to perform spoofing over a network.

Source-reported weakness categories

CWE-138

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

Microsoft Security Updates (CVRF) · 2026-Apr

Open original source · Updated Apr 14, 2026

.NET Spoofing Vulnerability

Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.

Microsoft maximum product score: 7.5

VendorProduct / associationVersion / bounds
Microsoft update guideMicrosoft Visual Studio 2022 version 17.12 (MSRC status code 3)
Microsoft update guideMicrosoft Visual Studio 2022 version 17.14 (MSRC status code 3)
Microsoft update guide.NET 10.0 installed on Windows (MSRC status code 3)
Microsoft update guide.NET 10.0 installed on Mac OS (MSRC status code 3)
Microsoft update guide.NET 10.0 installed on Linux (MSRC status code 3)
Microsoft update guide.NET 8.0 (MSRC status code 3)
Microsoft update guide.NET 8.0 installed on Linux (MSRC status code 3)
Microsoft update guide.NET 8.0 installed on Windows (MSRC status code 3)
Microsoft update guide.NET 8.0 installed on Mac OS (MSRC status code 3)
Microsoft update guide.NET 9.0 installed on Linux (MSRC status code 3)
Microsoft update guide.NET 9.0 installed on Windows (MSRC status code 3)
Microsoft update guide.NET 9.0 installed on Mac OS (MSRC status code 3)

Vendor remediation references

  • Release Notes · build 17.12.19 · product IDs 12459
  • Vendor guidance · product IDs 12459
  • Release Notes · build 17.14.30 · product IDs 16767
  • Vendor guidance · product IDs 16767
  • 5086095 · build 10.0.6 · product IDs 20837, 20838, 20839
  • Vendor guidance · product IDs 20837, 20838, 20839
  • 5086096 · build 8.0.26 · product IDs 12260, 12415, 12414, 12416
  • Vendor guidance · product IDs 12260, 12415, 12414, 12416
  • 5086097 · build 9.0.15 · product IDs 12432, 12434, 12433
  • Vendor guidance · product IDs 12432, 12434, 12433

Original records & references

PUBLISHED 2026-04-14T03:00:00-04:00
MODIFIED 2026-04-14T03:00:00-04:00
INGESTED 2026-10-08T12:45:05-04:00