Unspecified vulnerability in Oracle MySQL Server 5.5.42 and earlier and 5.6.23 and earlier allows remote authenticated users to affect availability via unknown vectors related to Server : Optimizer.
Exploitability
AV:NAC:MAu:SImpact
C:NI:NA:P3.5/AV:N/AC:M/Au:S/C:N/I:N/A:P