Critical (9.1). EPSS 0.6% chance of exploitation in the next 30 days.
The TLS engine in Kwik commit 745fd4e2 does not track the current state of the connection. This vulnerability can allow Client Hello messages to be overwritten at any time, including after a connection has been established.
Severity
CVSS 3.1
9.1 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
EPSS
0.6% chance of exploitation in the next 30 days; higher than 47% of CVEs (scores of 2026-10-31)