CVE-2025-67576Network attack vector

Unauthenticated disclosure via missing authorization

Published Dec 9, 2025 · Updated Apr 28, 2026

Missing authorization in QuantumCloud Simple Link Directory 8.8.3 and earlier allows remote attackers to disclose protected data. Published material does not identify the affected function, request, or resource, stating only that a required authorization control is absent. No account or user interaction is required; the reported consequence is limited to confidentiality, with no integrity or availability impact.

CVSS severity5.3
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Missing authorization in QuantumCloud Simple Link Directory 8.8.3 and earlier allows remote attackers to disclose protected data. Published material does not identify the affected function, request, or resource, stating only that a required authorization control is absent. No account or user interaction is required; the reported consequence is limited to confidentiality, with no integrity or availability impact.

The record

CVE
CVE-2025-67576
Published
Dec 9, 2025
Updated
Apr 28, 2026
Vendor
QuantumCloud
Product
Simple Link Directory
Classifications
CWE-862, CAPEC-180, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <=8.8.3 changes=[{"at":"8.8.4","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

QuantumCloud · Simple Link Directoryversion=0 <=8.8.3 changes=[{"at":"8.8.4","status":"unaffected"}]

Published CVSS scores

5.3PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A: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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
CAPEC-180Exploiting Incorrectly Configured Access Control Security Levels
T1190Exploit Public-Facing Application

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo