What’s Vulnerable › Vulnerabilities

CVE-2011-1563

• Severity: critical (CVSS 10.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 74.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2011-04-05 · updated 2026-06-16
• Weakness: CWE-119

Description

Multiple stack-based buffer 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 (1) a long username in an On_FC_CONNECT_FCS_LOGIN packet, and crafted (2) On_FC_CTAGLIST_FCS_CADDTAG, (3) On_FC_CTAGLIST_FCS_CDELTAG, (4) On_FC_CTAGLIST_FCS_ADDTAGMS, (5) On_FC_RFUSER_FCS_LOGIN, (6) unspecified "On_FC_BINFILE_FCS_*FILE", (7) On_FC_CGETTAG_FCS_GETTELEMETRY, (8) On_FC_CGETTAG_FCS_GETCHANNELTELEMETRY, (9) On_FC_CGETTAG_FCS_SETTELEMETRY, (10) On_FC_CGETTAG_FCS_SETCHANNELTELEMETRY, and (11) On_FC_SCRIPT_FCS_STARTPROG packets to port 910.

Affected products

• Realflex Realwin: through 2.1; 1.06, 2.0

References

• http://aluigi.org/adv/realwin_2-adv.txt
• http://aluigi.org/adv/realwin_3-adv.txt
• http://aluigi.org/adv/realwin_4-adv.txt
• http://aluigi.org/adv/realwin_5-adv.txt
• http://aluigi.org/adv/realwin_7-adv.txt
• http://aluigi.org/adv/realwin_8-adv.txt
• http://secunia.com/advisories/43848
• http://securityreason.com/securityalert/8176
• http://www.exploit-db.com/exploits/17025
• http://www.securityfocus.com/bid/46937
• http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-080-04.pdf
• http://www.vupen.com/english/advisories/2011/0742

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