CVE-2018-20818
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
65.1%
A buffer overflow vulnerability was discovered in the OpenPLC controller, in the OpenPLC_v2 and OpenPLC_v3 versions. It occurs in the modbus.cpp mapUnusedIO() function, which can cause a runtime crash of the PLC or possibly have unspecified other impact.
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| openplcproject | openplc_v2_firmware | - | cpe:2.3:o:openplcproject:openplc_v2_firmware:-:*:*:*:*:*:*:* |
| openplcproject | openplc_v2 | - | cpe:2.3:h:openplcproject:openplc_v2:-:*:*:*:*:*:*:* |
| openplcproject | openplc_v3_firmware | - | cpe:2.3:o:openplcproject:openplc_v3_firmware:-:*:*:*:*:*:*:* |
| openplcproject | openplc_v3 | - | cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:* |
References
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
65.1%