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CVE-2026-1693— Use of vulnerable Resource Owner Password Credentials flow

Quick assessment

Affected
arcinfo PcVue
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PcVue是PcVue公司的一个可靠、安全、强大的运营软件平台，专用于监测和控制建筑和园区管理等市场中的应用。 PcVue 12.0.0版本至16.3.3版本存在安全漏洞，该漏洞源于使用已弃用的ROPC授权流程，可能导致用户凭据被盗。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.31% · P24

Possible ATT&CK Techniques 1 AI

T1528 · Steal Application Access Token
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I. Basic Information for CVE-2026-1693

Vulnerability Information
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Vulnerability Title
Use of vulnerable Resource Owner Password Credentials flow
Source: CVE Program / CVE List V5
Vulnerability 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: CVE Program / CVE List V5
CVSS Information
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: CVE Program / CVE List V5
Vulnerability Type
CWE-1390
Source: CVE Program / CVE List V5
Vulnerability Title
PcVue 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PcVue是PcVue公司的一个可靠、安全、强大的运营软件平台，专用于监测和控制建筑和园区管理等市场中的应用。 PcVue 12.0.0版本至16.3.3版本存在安全漏洞，该漏洞源于使用已弃用的ROPC授权流程，可能导致用户凭据被盗。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
arcinfo PcVue 16.0.0 ~ 16.3.3 -

II. Public POCs for CVE-2026-1693

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III. Intelligence Information for CVE-2026-1693

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Vendor Advisories for CVE-2026-1693 (1)

Same Patch Batch · arcinfo · 2026-02-26 · 7 CVEs total

CVE-2026-1698 HTTP Host header vulnerability in WebClient and WebScheduler web apps
CVE-2026-1692 Missing origin validation in GraphicalData web service requests
CVE-2026-1696 Missing security HTTP headers
CVE-2026-1695 XSS vulnerability upon unsuccessful authentication
CVE-2026-1697 Use of unsecure cookies for GraphicalData web service and WebClient web app
CVE-2026-1694 Server configuration details in HTTP headers

IV. Related Vulnerabilities

Same product: PcVue
Same vendor: arcinfo
Same weakness: CWE-1390

V. Comments for CVE-2026-1693

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