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CVE Record

CVE-2021-42230: Seowon 130-SLC router all versions as of 2021-09-15 is vulnerable to Remote Code Execution via the queriesC...

Seowon 130-SLC router all versions as of 2021-09-15 is vulnerable to Remote Code Execution via the queriesCnt parameter.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This CVE describes remote code execution in Seowon 130-SLC routers. In business terms, a vulnerable router could become an entry point into the network. The sources do not provide a CVSS score, fixed version, or vendor mitigation, so exposure management should focus on finding these devices and reducing reachability.

Executive priority

Prioritize discovery and exposure reduction soon. The issue is RCE on a network appliance with public exploit material, but the sources lack active exploitation confirmation and patch details.

Technical view

The CVE states that Seowon 130-SLC router all versions as of 2021-09-15 are vulnerable to remote code execution via the queriesCnt parameter. The source bundle does not identify CVSS, CWE, authentication requirements, fixed firmware, or a vendor advisory.

Likely exposure

Exposure is most likely where Seowon 130-SLC routers are still deployed, especially if management or device services are reachable from the internet or broad internal networks. The bundle’s affected-product metadata is incomplete, so inventory confirmation is important.

Exploitation context

The bundle includes an Exploit-DB reference, indicating public exploit material exists. The KEV flag is false, and no cited source confirms active exploitation. Treat this as credible public-risk exposure, not confirmed in-the-wild exploitation.

Researcher notes

Evidence is sparse. The CVE record identifies the product, date-scoped affected versions, and vulnerable parameter, but omits root cause, privileges, CVSS, and remediation. Avoid assuming fixed releases or exploit prevalence without additional vendor evidence.

Mitigation direction

  • Identify any Seowon 130-SLC routers in asset inventory and network scans.
  • Check vendor or supplier guidance for firmware updates or replacement advice.
  • Restrict device management access to trusted management networks or VPN only.
  • Remove internet exposure for affected router interfaces and services.
  • Replace unsupported devices if no maintained firmware is available.

Validation and detection

  • Confirm router model and firmware version for all suspected Seowon devices.
  • Review external attack-surface scans for exposed router management interfaces.
  • Check firewall rules limiting access to trusted administrative sources.
  • Review device and perimeter logs for unusual requests referencing queriesCnt.
  • Document whether vendor guidance or replacement options exist.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-42230 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.