MZ Automation lib60870

Summary

Vulnerabilities 2

• Medium 6.5
  CVE-2026-61893

  MZ Automation lib60870 Out-of-bounds Read

  A crafted IEC 60870-5-104 I-frame with TypeID 104 (C_TS_NA_1) and an inflated object count causes TestCommand_getFromBuffer to read one byte past the end of the heap-allocated message buffer.

  MZ Automation lib60870 lib60870 Ubuntu
  Jul 30, 2026
• Medium 6.5
  CVE-2026-63033

  MZ Automation lib60870 Out-of-bounds Read

  A crafted IEC 60870-5-104 I-frame with a declared object count exceeding what fits in the ASDU body causes InformationObject_ParseObjectAddress to read one byte past the end of the heap-allocated message buffer.

  MZ Automation lib60870 lib60870 Ubuntu
  Jul 30, 2026

Revision history

1. 2026-07-30 #1

   Initial Publication

References

• ICSA Advisory ICSA-26-211-11 - Web Version
  https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-11
• 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/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
• Recommended Practices
  https://www.cisa.gov/topics/industrial-control-systems
• Recommended Practices
  https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01
• Recommended Practices
  https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
• Recommended Practices
  https://www.cisa.gov/news-events/news/targeted-cyber-intrusion-detection-and-mitigation-strategies-update-b
• Recommended Practices
  https://www.cisa.gov/secure-our-world/teach-employees-avoid-phishing
• Recommended Practices
  https://www.cisa.gov/news-events/news/avoiding-social-engineering-and-phishing-attacks