CVE-2026-70354

Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 30% of CVEs (scores of 2026-10-28)

CWE

CWE-787

Published

2026-08-11

Modified

2026-10-28

Record from

the NVD, synced 2026-10-28

Affected

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

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70354

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