ssh in OpenSSH before 10.4 can have a use-after-free when a server changes its host key during a key re-exchange. (This outcome occurs only on the client side.)
Exploitability
AV:NAC:HPR:NUI:NScope
S:UImpact
C:HI:HA:L7.7/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:LMemory Safety