CVE-2023-0027

Rockwell Automation Modbus TCP Server AOI prior to 2.04.00 is vulnerable to an unauthorized user sending a malformed message that could cause the controller to respond with a copy of the most recent response to the last valid request. If exploited, an unauthorized user could read the connected devices Modbus TCP Server AOI information.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
RockwellCNA
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVEADP
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 9%
VendorProductVersion
rockwellautomationmodbus_tcp_server_add_on_instructions
2.00.00 ≤
𝑥
< 2.04.00
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1138766
https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1138766