Security readout for executives and security teams
Plain-English summary
PcVue web features have a WebSocket origin-check weakness. An attacker could trick a logged-in PcVue user into visiting a malicious site, potentially causing limited unauthorized interaction with GraphicalData services. The issue is medium severity and limited to two SignalR endpoints.
Executive priority
Treat as a medium-priority remediation item for industrial or operational environments using PcVue web features. Prioritize systems reachable by broad user populations or remote access paths.
Technical view
CVE-2026-1692 is CWE-1385: missing origin validation in GraphicalData WebSocket requests. It affects PcVue versions 12.0.0 through 16.3.3 inclusive, specifically WebVue, WebScheduler, TouchVue, and SnapVue features, and only GraphicalData/js/signalR/connect and reconnect endpoints.
Likely exposure
Organizations exposing PcVue web features to users are the likely exposure group. Risk depends on authenticated user access and whether the affected GraphicalData endpoints are reachable from user browsers.
Exploitation context
The CVSS vector requires user interaction and authentication context. The attacker must lure a successfully authenticated user to a malicious website. The source bundle does not indicate public exploit code or active exploitation, and KEV is false.
Researcher notes
Evidence is limited to the CVE record and vendor advisory reference. Scope is explicitly constrained to two GraphicalData SignalR endpoints. Do not generalize impact to other PcVue endpoints without additional vendor evidence.
Mitigation direction
- Review the PcVue vendor advisory for fixed versions or official mitigations.
- Inventory PcVue deployments from 12.0.0 through 16.3.3 inclusive.
- Identify use of WebVue, WebScheduler, TouchVue, or SnapVue features.
- Limit exposure of PcVue web services to trusted networks where feasible.
- Educate PcVue users not to browse untrusted sites while authenticated.
Validation and detection
- Confirm PcVue version for each deployment.
- Check whether GraphicalData web services are enabled.
- Verify reachability of the two named SignalR endpoints.
- Review access logs for unusual authenticated WebSocket activity.
- Track remediation status against vendor advisory SB2026-2.
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-1385: 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 lookupCVE-2026-1692 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:L/VA:N/SC:L/SI:L/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:L/VA:N/SC:L/SI:L/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:L/VA:N/SC:L/SI:L/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.
Missing Origin Validation in WebSockets
Missing Origin Validation in WebSockets represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.