CVE-2022-21907

Critical (9.8) in microsoft. EPSS 93% chance of exploitation in the next 30 days.

EPSS

93% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)

Published

2022-01-11

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_2019

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21907
• http://packetstormsecurity.com/files/166730/Microsoft-HTTP-Protocol-Stack-Denial-Of-Service.html
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21907

Check your stackJSON