Security readout for executives and security teams
Plain-English summary
CVE-2021-30187 is an OS command injection issue in CODESYS V2 runtime system SP versions before 2.4.7.55. For businesses, the concern is OT or industrial-control software running an older CODESYS V2 runtime. The source bundle does not provide CVSS, exploit details, or device-specific impact.
Executive priority
Prioritize asset discovery and vendor confirmation in OT environments. The vulnerability class can be serious, but the supplied record lacks severity scoring and product detail, so urgency depends on confirmed CODESYS V2 runtime exposure.
Technical view
The CVE describes improper neutralization of special elements used in an OS command in CODESYS V2 runtime system SP before 2.4.7.55. No CWE, CPE, CVSS vector, attack preconditions, or affected OEM product list is provided in the supplied sources.
Likely exposure
Likely exposure is limited to environments running CODESYS V2 runtime system SP older than 2.4.7.55. The supplied affected-product metadata is incomplete and lists no vendor, product, versions, or CPEs beyond the CVE description.
Exploitation context
The provided bundle does not show CISA KEV listing, public exploitation, exploit maturity, attack vector, authentication requirements, or required network access. Treat exploitation status as unconfirmed from these sources.
Researcher notes
Evidence is sparse: the CVE record identifies the vulnerable runtime family and fixed threshold, but omits CVSS, CWE, CPEs, attack path, and exploit status. Avoid assuming affected OEM devices without vendor confirmation.
Mitigation direction
- Identify assets using CODESYS V2 runtime system SP.
- Check whether runtime versions are older than 2.4.7.55.
- Review CODESYS customer advisory guidance for supported remediation.
- Update to 2.4.7.55 or a vendor-approved later runtime where applicable.
- Ask OEMs whether embedded CODESYS runtimes are affected.
Validation and detection
- Inventory PLCs, gateways, HMIs, and engineering systems for CODESYS V2 runtime.
- Confirm exact runtime SP version from asset records or vendor management interfaces.
- Map affected systems to network exposure and operational criticality.
- Check vendor or OEM advisories for device-specific fixed firmware.
- Document systems where version evidence is unavailable.
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-2021-30187 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=14727&token=25159b0fc4355f4c6bc2e074a519a9d0cdb23fbb&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.