Directory traversal vulnerability in the client in HexChat 2.11.0 allows remote IRC servers to read or modify arbitrary files via a .. (dot dot) in the server name.
Severity
CVSS 3.0
7.4 high
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS
9.5% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-10-31)