A flaw in Snort could be used by attackers to run malicious code on vulnerable machines. The stack buffer overflow bug is in the Snort (or Sourcefire) DCE/RPC preprocessor. Danish vulnerability tracker Secunia rated the threat as “highly critical” Sourcefire urged users of Snort 2.6.1.x to update to Version 2.7.0 Beta 1.3 “immediately”; if upgrading isnt feasible, the preprocessor should be disabled.”]
Source: https://www.csoonline.com/article/2122120/snort-flaw-allows-attackers-to-run-malicious-code.html