What’s Vulnerable › Vulnerabilities

CVE-2019-10954: Rockwell Automation CompactLogix 5370 Stack-based Buffer Overflow

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-05-01 · updated 2026-06-17
• Weakness: CWE-121

Description

An attacker could send crafted SMTP packets to cause a denial-of-service condition where the controller enters a major non-recoverable faulted state (MNRF) in CompactLogix 5370 L1, L2, and L3 Controllers, Compact GuardLogix 5370 controllers, and Armor Compact GuardLogix 5370 Controllers Versions 20 - 30 and earlier.

Affected products

• Rockwellautomation Armor Compact Guardlogix 5370 Firmware: from 20.011 through 30.014
• Rockwellautomation Compact Guardlogix 5370 Firmware: from 20.011 through 30.014
• Rockwellautomation Compactlogix 5370 L1 Firmware: from 20.011 through 30.014
• Rockwellautomation Compactlogix 5370 L2 Firmware: from 20.011 through 30.014
• Rockwellautomation Compactlogix 5370 L3 Firmware: from 20.011 through 30.014

References

• http://www.securityfocus.com/bid/108118
• https://ics-cert.us-cert.gov/advisories/ICSA-19-120-01
• https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1075979
• http://www.securityfocus.com/bid/108118
• https://ics-cert.us-cert.gov/advisories/ICSA-19-120-01
• https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1075979

Get alerted when CVE-2019-10954 or the next vulnerability affects your stack