Security readout for executives and security teams
Plain-English summary
PcVue versions 12.0.0 through 16.3.3 reportedly still use the deprecated OAuth Resource Owner Password Credentials flow in web services for WebVue, WebScheduler, TouchVue, and Snapvue. This could expose user credentials to a remote attacker. There is no provided evidence of active exploitation.
Executive priority
Treat as a timely remediation item, especially for exposed industrial or operational environments. The issue is not rated critical, but credential theft can create downstream access risk. Prioritize inventory, exposure reduction, and vendor-guided remediation.
Technical view
CVE-2026-1693 is a medium-severity design/legacy-authentication issue involving continued use of deprecated ROPC OAuth grant flow. The CVSS 4.0 score is 5.3 with network attack vector, low complexity, no privileges required, and user interaction required. Impact is primarily credential confidentiality.
Likely exposure
Organizations running PcVue 12.0.0 through 16.3.3 and using WebVue, WebScheduler, TouchVue, or Snapvue web services are the likely exposure group. Internet-facing or broadly reachable deployments have higher business risk.
Exploitation context
Sources state a remote attacker might steal user credentials. The CVSS vector indicates user interaction is required. CISA KEV is false in the provided data, and no cited source confirms exploitation in the wild.
Researcher notes
The source bundle does not provide endpoint details, proof-of-concept information, or specific patch instructions. Analysis is limited to the CVE description, CVSS vector, affected version range, CWE mappings, and vendor advisory reference.
Mitigation direction
- Review PcVue vendor advisory SB2026-2 for official remediation guidance.
- Inventory PcVue deployments and identify versions 12.0.0 through 16.3.3.
- Restrict network access to affected PcVue web services where operationally feasible.
- Prioritize compensating controls for internet-facing or third-party-accessible deployments.
- Monitor authentication logs for unusual access patterns or credential misuse.
Validation and detection
- Confirm PcVue version on all servers and workstations.
- Identify whether WebVue, WebScheduler, TouchVue, or Snapvue are enabled.
- Check whether affected web services are reachable from untrusted networks.
- Review vendor advisory for fixed versions or configuration guidance.
- Document credential exposure risk for accounts using affected services.
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-1390: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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 lookupCWE-477: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-1693 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
- Medium
- CVSS
- 5.3 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y/R:U/RE:M/U:Clear
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y/R:U/RE:M/U:Clear——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
5.3MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y/R:U/RE:M/U:Clear
Source materials
- CVE List V5 sourceCVE List V5
- https://www.pcvue.com/security/#SB2026-2CVE reference · vendor-advisory
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.
Weak Authentication
Weak Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Use of Obsolete Function
Use of Obsolete Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.