Vulnerability Details : CVE-2018-7833
An Improper Check for Unusual or Exceptional Conditions vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 where an unauthenticated user can send a specially crafted XML data via a POST request to cause the web server to become unavailable
Products affected by CVE-2018-7833
- cpe:2.3:o:schneider-electric:modicom_m340_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicom_premium_firmware:*:*:*:*:*:*:*:*When used together with: Schneider-electric » Modicom Premium
- cpe:2.3:o:schneider-electric:modicom_quantum_firmware:*:*:*:*:*:*:*:*When used together with: Schneider-electric » Modicom Quantum
- cpe:2.3:o:schneider-electric:modicom_bmxnor0200h_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-7833
0.54%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 65 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-7833
| 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:3.0/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-2018-7833
-
The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-7833
-
https://www.schneider-electric.com/en/download/document/SEVD-2018-327-01/
Security Notification - Embedded Web Servers for Modicon V2.2 | Schneider ElectricVendor Advisory
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