KanColleViewer versions 3.8.1 and earlier operates as an open proxy which allows remote attackers to trigger outbound network traffic.
https://jvn.jp/vu/JVNVU98282440/
http://grabacr.net/kancolleviewer
Source: Mitre, NVD
Published: 2017-04-13
Updated: 2026-05-13
Base Score: 6.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P
Severity: Medium
Base Score: 9.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Severity: Critical
EPSS: 0.00525