What’s Vulnerable › Vulnerabilities

CVE-2011-4875

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 13.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2012-02-03 · updated 2026-06-16
• Weakness: CWE-119

Description

Stack-based buffer overflow in HmiLoad in the runtime loader in Siemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime, when Transfer Mode is enabled, allows remote attackers to execute arbitrary code via vectors related to Unicode strings.

Affected products

• Siemens Simatic Hmi Panels: comfort_panels, mobile_panels, mp, op, tp
• Siemens SIMATIC WinCC: v11
• Siemens Wincc Flexible: 2004, 2005, 2007, 2008
• Siemens Wincc Flexible Runtime: all versions
• Siemens Wincc Runtime Advanced: v11

References

• http://aluigi.org/adv/winccflex_1-adv.txt
• http://www.exploit-db.com/exploits/18166
• http://www.osvdb.org/77380
• http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345442.pdf
• http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02.pdf
• http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02A.pdf
• http://www.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdf
• https://exchange.xforce.ibmcloud.com/vulnerabilities/71449
• http://aluigi.org/adv/winccflex_1-adv.txt
• http://www.exploit-db.com/exploits/18166
• http://www.osvdb.org/77380
• http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345442.pdf

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