CVE-2011-4877: siemens simatic_hmi_panels Improper Input Validation
Vulnerability summary
CVE-2011-4877 is a high (CVSS 7.1) Improper Input Validation vulnerability in siemens simatic_hmi_panels. EPSS estimates a 7.26% chance of exploitation in the next 30 days, higher than 94.2% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 03-02-2012PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
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 cause a denial of service (application crash) by sending crafted data over TCP.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
7.26%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
0.00 pp
From 7.26% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundSiemens SIMATIC WinCC Flexible (Runtime) - Multiple Vulnerabilities
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Siemens4 products
- simatic_hmi_panelscomfort_panels | mobile_panels | mp | op | tp
- winccv11
- wincc_flexible2004 | 2005 | 2007 | 2008
- wincc_runtime_advancedv11
1 vendor · 4 products
References
8 links- www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02.pdfX Refsource MISC
- www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02A.pdfX Refsource MISC
- aluigi.org/adv/winccflex_1-adv.txtX Refsource MISC