JustSystems JUST Online Update, as used in Ichitaro through 2014 and other products, does not properly validate signatures of update modules, which allows remote attackers to spoof modules and. Rated high severity (CVSS 7.6), this vulnerability is remotely exploitable. No vendor patch available.
RCE
Ichitaro
Just Online Update
NVD
CVSS 2.0
7.6
EPSS
5.4%