What’s Vulnerable › Vulnerabilities

CVE-2020-6085

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-10-19 · updated 2026-06-17
• Weakness: CWE-120

Description

An exploitable denial of service vulnerability exists in the ENIP Request Path Logical Segment functionality of Allen-Bradley Flex IO 1794-AENT/B 4.003. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability by sending an Electronic Key Segment with less than 0x18 bytes following the Key Format field.

Affected products

• Rockwellautomation Flex I/O 1794-Aent: 4.003

References

• https://talosintelligence.com/vulnerability_reports/TALOS-2020-1006
• https://talosintelligence.com/vulnerability_reports/TALOS-2020-1006

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