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HIGH

CVE-2020-6085

CVSS v3

7.5

HIGH

EPSS Score

4.3 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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.

Technical details

Published
2020-10-19

Frequently asked questions

What is CVE-2020-6085?

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.

Is CVE-2020-6085 actively exploited?

Active exploitation of CVE-2020-6085 has not been confirmed. Its EPSS score was 4.3% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-6085?

CVE-2020-6085 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2020-6085 affecting your environment?

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