CVE-2026-50659

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

CVSS 3.1

6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS

0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-25)

CWE

CWE-116

Published

2026-07-14

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• microsoft:.net
• microsoft:.net_framework
• microsoft:visual_studio_2022
• microsoft:visual_studio_2026

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50659

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