CVE-2021-40464

High (8.0) in microsoft. EPSS 0.6% chance of exploitation in the next 30 days.

EPSS

0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-31)

CWE

CWE-269

Published

2021-10-13

Modified

2026-06-17

Record from

the NVD, synced 2026-10-19

Affected

• microsoft:windows_10
• microsoft:windows_11
• microsoft:windows_server
• microsoft:windows_server_2016
• microsoft:windows_server_2019
• microsoft:windows_server_2022

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40464
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40464

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