CVE-2024-12056Network attack vector

Authenticated OAuth client impersonation via unchecked secret

Published Dec 4, 2024 · Updated Dec 4, 2024

Authentication bypass in ARC Informatique PcVue 12.0 through 16.2.0 allows remote authenticated users to connect through an unauthorized OAuth client. The OAuth server accepts Password grant requests without checking the client secret, allowing an unapproved client to use the deployment. Only Web Servers with Web & Mobile features are exposed, valid user credentials remain required, and assigned user privileges are not bypassed.

CVSS severity2.3
Low
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in ARC Informatique PcVue 12.0 through 16.2.0 allows remote authenticated users to connect through an unauthorized OAuth client. The OAuth server accepts Password grant requests without checking the client secret, allowing an unapproved client to use the deployment. Only Web Servers with Web & Mobile features are exposed, valid user credentials remain required, and assigned user privileges are not bypassed.

The record

CVE
CVE-2024-12056
Published
Dec 4, 2024
Updated
Dec 4, 2024
Vendor
ARC Informatique
Product
PcVue
Classifications
CWE-358, T1078
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 4, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 4, 2024Record 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 <16.2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ARC Informatique · PcVueversion=12.0 <16.2.2

Published CVSS scores

2.3ARC InformatiqueCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/AU:N/R:U/RE:M/U:Green

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-358Improperly Implemented Security Check for Standard
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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