Security readout for executives and security teams
Plain-English summary
SmartPTT SCADA Server 1.4 can allow an unauthenticated network user to request files without proper authentication or authorization. For an OT or dispatch-support environment, that can expose sensitive files and may affect confidentiality, integrity, and availability depending on what files are reachable.
Executive priority
Treat this as a high-priority OT exposure review, especially where SmartPTT supports operational communications or SCADA workflows. Prioritize inventory, network reachability reduction, and vendor-guidance tracking.
Technical view
CVE-2021-43938 is a CWE-200 information exposure issue in Elcomplus SmartPTT SCADA Server 1.4. The CVSS 3.1 score is 8.1, with network access, no privileges, no user interaction, high complexity, and high confidentiality, integrity, and availability impacts.
Likely exposure
Exposure is limited to organizations running Elcomplus SmartPTT SCADA Server 1.4. Risk rises if the server is reachable from untrusted networks, shared IT segments, vendor remote access paths, or insufficiently segmented OT networks.
Exploitation context
The source bundle does not identify active exploitation, and the CVE is not marked as CISA KEV. The vulnerability is still operationally serious because unauthenticated file access against SCADA-adjacent software can expose sensitive operational data.
Researcher notes
Evidence is sparse in the provided bundle: affected product and version are clear, but specific file paths, patch versions, and vendor remediation details are not included. Avoid assuming exploitability beyond unauthenticated file requests described by the CVE.
Mitigation direction
- Identify all SmartPTT SCADA Server 1.4 deployments and owners.
- Check CISA and Elcomplus guidance for supported updates or mitigations.
- Restrict server access to trusted administrative and OT network paths.
- Remove any unnecessary internet or broad enterprise network exposure.
- Increase monitoring for unauthorized file access attempts.
Validation and detection
- Confirm installed SmartPTT SCADA Server versions against asset records.
- Verify whether any affected server is reachable from untrusted networks.
- Review access logs for unauthenticated file request patterns.
- Confirm remediation status against CISA or vendor guidance.
- Document compensating controls where an update is unavailable.
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.
CWE-200: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-43938 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
- High
- CVSS
- 8.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H2.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.cisa.gov/uscert/ics/advisories/icsa-22-109-05CVE reference · x_refsource_CONFIRM
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.
Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.