PcVue: Use of Obsolete Function
CVE-2026-1693 is a high-severity use of obsolete function vulnerability in PcVue from Arcinfo, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected PcVue versions: 16.0.0 through 16.3.3; 15.0.0 through 15.2.13; 12.0.0. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.36% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of PcVue you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on pcvue.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Arcinfo | PcVue | 16.0.0 through 16.3.3; 15.0.0 through 15.2.13; 12.0.0 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 5.3 | Medium | CNA |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
The OAuth grant type Resource Owner Password Credentials (ROPC) flow is still used by the werbservices used by the WebVue, WebScheduler, TouchVue and Snapvue features of PcVue in version 12.0.0 through 16.3.3 included despite being deprecated. It might allow a remote attacker to steal user credentials.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Use of Obsolete Function
The code uses deprecated or obsolete functions, which suggests that the code has not been actively reviewed or maintained.
How developers prevent this class of flaw
- Refer to the documentation for the obsolete function in order to determine why it is deprecated or obsolete and to learn about alternative ways to achieve the same functionality.
- Consider seriously the security implications of using an obsolete function. Consider using alternate functions.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other vulnerabilities in PcVue
- 7.6 High severity
Recent Use of Obsolete Function vulnerabilities
- 9.8 Critical severity
- 8.8 High severity
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