CVE-2011-1564: Realflex Realwin

High severity, CVSS 10.0. EPSS: 18.6% chance of exploitation in the next 30 days.

Multiple integer overflows in the HMI application in DATAC RealFlex RealWin 2.1 (Build 6.1.10.10) and earlier allow remote attackers to execute arbitrary code via crafted (1) On_FC_MISC_FCS_MSGBROADCAST and (2) On_FC_MISC_FCS_MSGSEND packets, which trigger a heap-based buffer overflow.

Affected products

• Realflex Realwin: up to and including 2.1; version 1.06 only; version 2.0 only

Published 2011-04-05. Last modified 2026-06-16.