Vulnerability Details : CVE-2018-7821
An Environment (CWE-2) vulnerability exists in SoMachine Basic, all versions, and Modicon M221(all references, all versions prior to firmware V1.10.0.0) which could cause cycle time impact when flooding the M221 ethernet interface while the Ethernet/IP adapter is activated.
Products affected by CVE-2018-7821
- cpe:2.3:o:schneider-electric:modicon_m221_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:a:schneider-electric:somachine_basic:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-7821
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 41 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-7821
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2018-7821
-
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-7821
-
https://www.schneider-electric.com/en/download/document/SEVD-2019-045-01/
Security Notification - Modicon M221 | Schneider ElectricVendor Advisory
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