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.
References (1)
Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1006
Scores
CVSS v3
7.5
EPSS
0.0004
EPSS Percentile
12.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-120
Status
published
Products (1)
rockwellautomation/flex_i\/o_1794-aent
4.003
Published
Oct 19, 2020
Tracked Since
Feb 18, 2026