CVE-2026-1693 Use of vulnerable Resource Owner Password Credentials flow
Remote attackers can steal user credentials via deprecated OAuth ROPC flow in PcVue SCADA software, leading to account takeover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-1693?
CVE-2026-1693 is a medium-severity vulnerability in arcinfo PcVue, published on 26 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
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.
Which versions are affected by CVE-2026-1693?
It affects 1 product.
Products include Arcinfo Pcvue.
How do I fix CVE-2026-1693?
No fix has been published for CVE-2026-1693 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-1693 being exploited?
There is no known exploitation of CVE-2026-1693 in the wild and no public exploit code.
Other vulnerabilities in arcinfo PcVue
- CVE-2020-26867 ARC Informatique PcVue Deserialization of Untrusted Data
- CVE-2026-14868 Weak encryption mechanism for User directory
- CVE-2020-26868 ARC Informatique PcVue Access to Critical Private Variable via Public Method
- CVE-2020-26869 ARC Informatique PcVue Exposure of Sensitive Information to an Unauthorized Actor
- CVE-2026-14867 Insecure password storage in User directory
Sources
Also known as GHSA-5w3f-m935-fxvq.