CVE-2026-1693Network attack vector

Credential theft via enabled OAuth ROPC flow

Published Feb 26, 2026 · Updated Feb 26, 2026

Weak authentication in PcVue 12.0.0, 15.0.0 through 15.2.13, and 16.0.0 through 16.3.3 allows remote attackers to steal credentials via ROPC. The WebVue, WebScheduler, TouchVue, SnapVue, and web-services OAuth configuration keeps the deprecated Resource Owner Password Credentials grant enabled, so a client handles the account password directly rather than using a redirect-based flow. The affected Web and Mobile components must be installed and reachable, and a user must interact with a client that invokes the enabled grant; the reported consequence is credential disclosure.

CVSS severity5.3
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak authentication in PcVue 12.0.0, 15.0.0 through 15.2.13, and 16.0.0 through 16.3.3 allows remote attackers to steal credentials via ROPC. The WebVue, WebScheduler, TouchVue, SnapVue, and web-services OAuth configuration keeps the deprecated Resource Owner Password Credentials grant enabled, so a client handles the account password directly rather than using a redirect-based flow. The affected Web and Mobile components must be installed and reachable, and a user must interact with a client that invokes the enabled grant; the reported consequence is credential disclosure.

The record

CVE
CVE-2026-1693
Published
Feb 26, 2026
Updated
Feb 26, 2026
Vendor
ARC Informatique
Product
PcVue
Classifications
CWE-477, CWE-1390
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=12.0.0
  2. Affected versionversion=15.0.0 <=15.2.13
  3. Affected versionversion=16.0.0 <=16.3.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ARC Informatique · PcVueversion=12.0.0; version=15.0.0 <=15.2.13; version=16.0.0 <=16.3.3

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.3ARC InformatiqueCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-477Use of Obsolete Function
CWE-1390Weak Authentication

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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