CVE-2024-0986Public exploitNetwork attack vector

Authenticated command execution via crafted backup filename

Published Jan 28, 2024 · Updated May 29, 2025

OS command injection in Issabel PBX 4.0.0 allows remote authenticated users to execute arbitrary commands through Asterisk-Cli. The Asterisk-Cli form accepts a txtCommand value containing xmldoc dump and a pipe-delimited shell command, creates a backup filename from it, and passes that filename to restore.php for execution. A valid web-panel account is required; successful exploitation can create files under /var/www/backup and run Unix commands with the web application's privileges.

CVSS severity9.8
Critical
EPSS probability58.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Issabel PBX 4.0.0 allows remote authenticated users to execute arbitrary commands through Asterisk-Cli. The Asterisk-Cli form accepts a txtCommand value containing xmldoc dump and a pipe-delimited shell command, creates a backup filename from it, and passes that filename to restore.php for execution. A valid web-panel account is required; successful exploitation can create files under /var/www/backup and run Unix commands with the web application's privileges.

The record

CVE
CVE-2024-0986
Published
Jan 28, 2024
Updated
May 29, 2025
Vendor
Issabel LLC
Product
Issabel PBX
Classifications
CWE-78, CAPEC-88, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 28, 2024CVE publishedPublication date reported by the CVE source.
  2. May 29, 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?

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

  1. Affected versionversion=4.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Issabel LLC · Issabel PBXversion=4.0.0

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.7GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
5.8NVDAV:N/AC:L/Au:M/C:P/I:P/A:P

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 exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC-88OS Command Injection
T1059.004Unix Shell

Public exploit references

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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