CVE-2025-64066Network attack vector

Unauthenticated account creation via unchecked registration endpoint

Published Nov 25, 2025 · Updated Nov 25, 2025

Broken access control in Primakon Pi Portal 1.0.18 allows remote attackers to create local accounts through its registration API. The /api/v2/user/register endpoint accepts unauthenticated POST requests and writes new users to the local database without an authorization check. The same endpoint reveals whether accounts already exist; further privilege escalation requires chaining with another flaw.

CVSS severity8.6
High
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Broken access control in Primakon Pi Portal 1.0.18 allows remote attackers to create local accounts through its registration API. The /api/v2/user/register endpoint accepts unauthenticated POST requests and writes new users to the local database without an authorization check. The same endpoint reveals whether accounts already exist; further privilege escalation requires chaining with another flaw.

The record

CVE
CVE-2025-64066
Published
Nov 25, 2025
Updated
Nov 25, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284, T1087, T1136
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.6CISA ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

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-284Improper Access Control
T1087Account Discovery
T1136Create Account

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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