CVE-2018-7821
Last modified
CVE-2018-7821 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 1.10% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Schneider-Electric | Somachine Basic | All versions |
| Schneider-Electric | Modicon M221 Firmware | < 1.10.0.0 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-7821?
How severe is CVE-2018-7821?
How do I fix CVE-2018-7821?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2018
- CVE-2018-7813A Type Confusion (CWE-843) vulnerability exists in Eurotherm…
- CVE-2018-7814A Stack-based Buffer Overflow (CWE-121) vulnerability exists…
- CVE-2018-7815A Type Confusion (CWE-843) vulnerability exists in Eurotherm…
- CVE-2018-7816A Permissions, Privileges, and Access Control vulnerability …
- CVE-2018-7817A Use After Free (CWE-416) vulnerability exists in Zelio Sof…
- CVE-2018-7820A Credentials Management CWE-255 vulnerability exists in the…9.8
- CVE-2018-7822An Incorrect Default Permissions (CWE-276) vulnerability exi…5.5
- CVE-2018-7823A Environment (CWE-2) vulnerability exists in SoMachine Basi…5.3
- CVE-2018-7824An Externally Controlled Reference to a Resource (CWE-610) v…4.9
- CVE-2018-7825A Command Injection vulnerability exists in the web-based GU…
- CVE-2018-7826A Command Injection vulnerability exists in the web-based GU…
- CVE-2018-7827A Cross-Site Scripting (XSS) vulnerability exists in the 1st…
Are you affected by CVE-2018-7821?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST