From ${URL} : When processing subtitles format media file, KMPlayer version 2018.12.24.14 or lower doesn't check object size correctly, which leads to integer underflow then to memory out-of-bound read/write. An attacker can exploit this issue by enticing an unsuspecting user to open a malicious file. Reference: https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=34991 @maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.
That's not KDE software and probably nothing Gentoo has in its repositories.
Closing as invalid: This is not for media-video/kmplayer or any other package in Gentoo.