CVE-2024-0986: A vulnerability was found in Issabel PBX 4.0.0

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MEDIUM 4.7DOWNGRADE

CVE-2024-0986 is a medium-severity flaw (CVSS 4.7) affecting pbx. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in Issabel PBX 4.0.0. It has been rated as critical. This issue affects some unknown processing of the file /index.php?menu=asterisk_cli of the component Asterisk-Cli. The manipulation of the argument Command leads to os command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-252251. NOTE: The vendor was

Why this priority

EPSS top 1%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.7 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	58.2% (top 1%)
CISA exploited list	No
Weakness	CWE-78
Published	2024-01-29
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: issabel

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-01-29 00:15 UTCPublished CVE record published
2026-06-17 06:54 UTCUpdated Record last modified

issabel pbx DOWNGRADE

Affected: 4.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.0.0

1. Check installed version

apt-cache policy pbx || rpm -q pbx || pbx --version

2. No fixed release: DOWNGRADE to a release before 4.0.0 (Debian / Ubuntu)

apt-cache madison pbx sudo apt install pbx=<VERSION_BEFORE_4.0.0> sudo apt-mark hold pbx

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list pbx sudo dnf downgrade pbx-<VERSION_BEFORE_4.0.0> sudo dnf versionlock add pbx

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: Issabel Authenticated - Remote Code Execution

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-0986?

pbx: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-0986 being exploited?

CVE-2024-0986 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-0986 affect?

CVE-2024-0986 affects pbx. Severity is medium (CVSS 4.7). A vulnerability was found in Issabel PBX 4.0.0. It has been rated as critical. This issue affects some unknown processing of the file /index.php?menu=asterisk_cli of the component Asterisk-Cli. The manipulation of the argument Command leads

How urgent is CVE-2024-0986?

Priority 46/100. EPSS top 1%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

References

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