CVE-2025-67513Network attack vector

Unauthorized endpoint access via guessable default password

Published Dec 10, 2025 · Updated Feb 13, 2026

Weak password requirements in FreePBX Endpoint Manager before 16.0.96 and 17.0.1 through 17.0.9 allow remote attackers to gain endpoint access. The endpoint module initializes app_password as a six-digit numeric value rather than a randomized high-entropy secret, making exhaustive guessing practical. The REST Phone Apps interface must be network-reachable; successful guessing exposes whichever locally configured extension, voicemail, User Manager, DPMA, or phone-admin authority uses the shared value.

CVSS severity6.9
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak password requirements in FreePBX Endpoint Manager before 16.0.96 and 17.0.1 through 17.0.9 allow remote attackers to gain endpoint access. The endpoint module initializes app_password as a six-digit numeric value rather than a randomized high-entropy secret, making exhaustive guessing practical. The REST Phone Apps interface must be network-reachable; successful guessing exposes whichever locally configured extension, voicemail, User Manager, DPMA, or phone-admin authority uses the shared value.

The record

CVE
CVE-2025-67513
Published
Dec 10, 2025
Updated
Feb 13, 2026
Vendor
FreePBX
Product
EndPoint Manager
Classifications
CWE-521, T1110.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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=< 16.0.96
  2. Affected versionversion=>= 17.0.1, < 17.0.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

FreePBX · EndPoint Managerversion=< 16.0.96; version=>= 17.0.1, < 17.0.10

Published CVSS scores

6.9GitHub Security AdvisoryCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/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.

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-521Weak Password Requirements
T1110.001Brute Force: Password Guessing

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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