CVE-2026-50659 PUBLISHED

.NET Spoofing Vulnerability

Assigner: microsoft
Reserved: 05.06.2026 Published: 14.07.2026 Updated: 14.07.2026

Improper encoding or escaping of output in .NET allows an authorized attacker to perform spoofing over a network.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C
CVSS Score: 6.5

Product Status

Vendor Microsoft
Product .NET 10.0
Versions
  • affected from 10.0.0 to 10.0.6 (excl.)
Vendor Microsoft
Product .NET 8.0
Versions
  • affected from 8.0.0 to 8.0.29 (excl.)
Vendor Microsoft
Product .NET 9.0
Versions
  • affected from 9.0.0 to 9.0.18 (excl.)
Vendor Microsoft
Product Microsoft Visual Studio 2022 version 17.12
Versions
  • affected from 17.12.0 to 17.12.22 (excl.)
Vendor Microsoft
Product Microsoft Visual Studio 2022 version 17.14
Versions
  • affected from 17.14.0 to 17.14.36 (excl.)
Vendor Microsoft
Product Microsoft Visual Studio 2026 version 18.7
Versions
  • affected from 18.0 to 18.7.4 (excl.)

References

Problem Types