CVE-2026-50420

Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to disclose information locally.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 34% of CVEs (scores of 2026-10-25)

CWE

CWE-125

Published

2026-07-14

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• microsoft:windows_11_24h2
• microsoft:windows_11_25h2
• microsoft:windows_11_26h1
• microsoft:windows_server_2025

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50420

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