CVE-2026-47304

Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.

CVSS 3.1

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-28)

CWEs

CWE-345, CWE-347

Published

2026-07-14

Modified

2026-10-28

Record from

the NVD, synced 2026-10-28

Affected

• microsoft:.net
• microsoft:.net_framework
• microsoft:visual_studio_2017
• microsoft:visual_studio_2019
• microsoft:visual_studio_2022
• microsoft:visual_studio_2026

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47304

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