Security readout for executives and security teams
Plain-English summary
CVE-2021-38613 is a remote code execution issue in the Image Upload feature of NASCENT RemKon Device Manager 4.0.0.0. The public record says attackers can upload code to the target system. For executives, the risk is highest where this management interface is reachable by untrusted users or networks.
Executive priority
Treat as high priority for any confirmed deployment, especially if remotely reachable. Prioritize discovery and access restriction first because the source bundle does not name a patch or confirmed exploitation.
Technical view
The reported flaw is in assets/index.php Image Upload handling. The CVE description says the feature allows arbitrary code upload, leading to remote code execution. The source bundle does not provide CVSS, CWE, authentication requirements, patch details, or exact exposure prerequisites beyond the named RemKon Device Manager 4.0.0.0 context.
Likely exposure
Likely limited to organizations running NASCENT RemKon Device Manager 4.0.0.0. Exposure depends on whether the image upload interface is reachable and whether access controls restrict untrusted users. The source bundle does not establish internet-scale prevalence.
Exploitation context
No active exploitation is cited in the provided sources, and the CVE is not marked as CISA KEV. The public description is still serious because it claims remote code execution through code upload, but exploit maturity and prerequisites are not documented in the bundle.
Researcher notes
The evidence is sparse: CVE text and a public advisory reference identify arbitrary code upload to RCE, but no CVSS vector, CWE, exploit status, or remediation version is supplied. Avoid assuming broader product lines or versions without vendor confirmation.
Mitigation direction
- Identify any RemKon Device Manager 4.0.0.0 deployments.
- Restrict management interface access to trusted networks and administrators.
- Check NASCENT or vendor guidance for patches or supported upgrades.
- Review upload storage so uploaded files cannot execute as code.
- Increase monitoring for suspicious uploads or new executable files.
Validation and detection
- Confirm whether RemKon Device Manager 4.0.0.0 exists in asset inventory.
- Verify the image upload route is not publicly reachable.
- Review access controls protecting assets/index.php upload functionality.
- Check server logs for unexpected upload activity around the application.
- Document patch status and any vendor response.
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.
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 lookupCVE-2021-38613 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.nascent.com/single-post/2019/01/17/nascent-technology-releases-remkon-31-to-enhance-audio-experienceCVE reference · x_refsource_MISC
- https://www.blacklanternsecurity.com/2021-08-23-Nascent-RemKon-CVEs/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.