Security readout for executives and security teams
Plain-English summary
This issue affects Schneider Electric SoMachine Basic and Modicon M221 firmware before V1.10.0.0. A person already logged into the computer hosting SoMachine Basic could gain unauthorized access to SoMachine Basic resource files. The source bundle does not provide CVSS scoring or confirm active exploitation.
Executive priority
Treat this as a targeted operational-technology workstation hardening issue. Prioritize environments where engineering stations are shared, remotely administered, or accessible by non-administrative users.
Technical view
CVE-2018-7822 is an incorrect default permissions issue, mapped to CWE-276 in the title, involving SoMachine Basic resource files. The described attack condition is local access to the host running SoMachine Basic. Affected scope includes all SoMachine Basic versions and Modicon M221 firmware before V1.10.0.0.
Likely exposure
Exposure is most likely on engineering workstations or maintenance systems where SoMachine Basic is installed, especially where multiple users can log in locally.
Exploitation context
The provided sources do not report exploitation in the wild, and the CVE is not marked KEV. The described condition requires being logged onto the system hosting SoMachine Basic, so this is not described as a remote unauthenticated issue.
Researcher notes
Evidence is limited to the CVE description and Schneider Electric advisory reference. No CVSS vector, exploit status, or detailed file paths are provided in the source bundle, so validation should avoid assumptions beyond local host access and affected version checks.
Mitigation direction
- Review Schneider Electric advisory SEVD-2019-045-01 for vendor-specific remediation guidance.
- Upgrade Modicon M221 firmware to V1.10.0.0 or later where applicable.
- Limit interactive access to hosts running SoMachine Basic to trusted, authorized users.
- Inventory SoMachine Basic installations on engineering and operations workstations.
Validation and detection
- Identify systems with SoMachine Basic installed and record local user access paths.
- Check Modicon M221 firmware versions and flag any below V1.10.0.0.
- Review permissions on SoMachine Basic resource file locations against vendor guidance.
- Confirm whether Schneider Electric advisory actions have been applied.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2018-7822 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.schneider-electric.com/en/download/document/SEVD-2019-045-01/CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.