What’s Vulnerable › Vulnerabilities

CVE-2017-12093

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-04-05 · updated 2026-06-17
• Weakness: CWE-400

Description

An exploitable insufficient resource pool vulnerability exists in the session communication functionality of Allen Bradley Micrologix 1400 Series B Firmware 21.2 and before. A specially crafted stream of packets can cause a flood of the session resource pool resulting in legitimate connections to the PLC being disconnected. An attacker can send unauthenticated packets to trigger this vulnerability.

Affected products

• Rockwellautomation Micrologix 1400 B Firmware: through 21.2

References

• https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0445
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0445

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