Security readout for executives and security teams
Plain-English summary
CVE-2021-30190 describes an improper access control issue in CODESYS V2 Web-Server versions before 1.1.9.20. The public bundle does not provide severity, business impact detail, or affected vendor CPEs, so urgency depends on whether this component is deployed and exposed.
Executive priority
Treat this as an inventory-driven OT or industrial software concern. Prioritize confirmation where CODESYS V2 Web-Server is exposed to corporate, vendor, or internet-accessible networks, but do not classify it as actively exploited based on the supplied evidence.
Technical view
The CVE record states that CODESYS V2 Web-Server before 1.1.9.20 has improper access control. No CVSS score, CWE mapping, exploitability details, or complete affected-product metadata are included in the supplied sources.
Likely exposure
Likely exposure is limited to environments running CODESYS V2 Web-Server versions earlier than 1.1.9.20. The source bundle does not identify specific downstream products, OEM integrations, or deployment patterns.
Exploitation context
The supplied sources do not state active exploitation, and the CVE is not listed as KEV in the bundle. No public exploit status is provided, so exploitation should not be assumed from this evidence alone.
Researcher notes
Evidence is sparse. The CVE text names improper access control and a version boundary, but lacks CVSS, CWE, attack prerequisites, impact scope, and downstream vendor mappings. Validation should focus on version confirmation and vendor advisory review.
Mitigation direction
- Inventory systems running CODESYS V2 Web-Server.
- Verify whether deployed versions are before 1.1.9.20.
- Check CODESYS customer guidance for the official remediation path.
- Upgrade or retire affected deployments when vendor guidance confirms the fix.
- Restrict management and web access to trusted networks.
Validation and detection
- Confirm product name and version from asset inventory.
- Compare deployed versions against the before-1.1.9.20 affected range.
- Review vendor advisory materials linked from the CVE references.
- Check whether any instance is reachable from untrusted networks.
- Document unresolved OEM or embedded-system ownership gaps.
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-2021-30190 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://customers.codesys.com/index.phpCVE reference · x_refsource_MISC
- https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14726&token=553da5d11234bbe1ceed59969d419a71bb8c8747&download=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.