Beckhoff TwinCAT Read Access Violation

Vulnerabilities 1

• Unscored —
  CVE-2011-3486 Public exploit EPSS 50%

  Beckhoff TwinCAT 2.11.0.2004 and earlier allows remote attackers to cause a denial of service via a crafted request to …

  Sep 16, 2011

Revision history

1. 2025-06-09 #2

   Advisory converted into a CSAF

2. 2011-07-09 #1

   Initial Publication

References

• ICS Advisory ICSA-11-279-04 - Web Version
  https://www.cisa.gov/news-events/ics-advisories/icsa-11-279-04
• Recommended Practices
  https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
• Recommended Practices
  https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
• Recommended Practices
  https://www.cisa.gov/topics/industrial-control-systems
• Recommended Practices
  https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
• Recommended Practices
  https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
• Recommended Practices
  https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B
• Recommended Practices
  https://www.cisa.gov/uscert/sites/default/files/publications/emailscams0905.pdf
• Recommended Practices
  https://www.cisa.gov/uscert/ncas/tips/ST04-014