Vulnerability Details : CVE-2018-7855
A CWE-248 Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a Denial of Service when sending invalid breakpoint parameters to the controller over Modbus
Vulnerability category: Denial of service
Exploit prediction scoring system (EPSS) score for CVE-2018-7855
Probability of exploitation activity in the next 30 days: 0.31%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 66 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2018-7855
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
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-2018-7855
-
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-2018-7855
-
https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0766
TALOS-2019-0766 || Cisco Talos Intelligence Group - Comprehensive Threat IntelligenceExploit;Third Party Advisory
-
https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0767
TALOS-2019-0767 || Cisco Talos Intelligence Group - Comprehensive Threat IntelligenceExploit;Third Party Advisory
-
https://www.schneider-electric.com/en/download/document/SEVD-2019-134-11/
Security Notification - Modicon Controllers V1.3 | Schneider ElectricMitigation;Vendor Advisory
Products affected by CVE-2018-7855
- cpe:2.3:o:schneider-electric:modicon_m580_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_quantum_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_premium_firmware:-:*:*:*:*:*:*:*