An information disclosure vulnerability exists when the Windows TCP/IP stack improperly handles IPv6 flowlabel filled in packets, aka 'Windows TCP/IP Information Disclosure Vulnerability'.
Severity
CVSS 3.1
5.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
4.6% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)