CVE-2026-75600: FreePBX is an open source IP PBX

Q: How do I fix CVE-2026-75600?

freepbx: upgrade to 17.0.9. Exact commands for each OS are on this page.

Q: Is CVE-2026-75600 being exploited?

CVE-2026-75600 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-75600 affect?

CVE-2026-75600 affects freepbx. Severity is high (CVSS 8.8). FreePBX is an open source IP PBX. Prior to version 17.0.9, authenticated users who are authorized to access the GraphQL api module interface of FreePBX are able to execute arbitrary shell commands. Authenticated access to the api module is

This month

HIGH 8.8UPGRADE

CVE-2026-75600 is a high-severity flaw (CVSS 8.8) affecting freepbx. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FreePBX is an open source IP PBX. Prior to version 17.0.9, authenticated users who are authorized to access the GraphQL api module interface of FreePBX are able to execute arbitrary shell commands. Authenticated access to the api module is required. The PBX API module's documentation generator accepts an authenticated host parameter and uses it to build a shell command. The code path validates the generated OAuth access token before execution, bu

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-09-28
Last modified	2026-10-16

Publisher (CNA): GitHub, Inc. · Vendor: sangoma

Last updated 2026-10-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-28 18:17 UTCPublished CVE record published
2026-10-16 18:13 UTCUpdated Record last modified

sangoma freepbx UPGRADE

Affected: < 17.0.9

Fixed in: 17.0.9

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 17.0.9 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade freepbx

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade freepbx

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2026-75600?

freepbx: upgrade to 17.0.9. Exact commands for each OS are on this page.

Is CVE-2026-75600 being exploited?

CVE-2026-75600 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-2026-75600 affect?

CVE-2026-75600 affects freepbx. Severity is high (CVSS 8.8). FreePBX is an open source IP PBX. Prior to version 17.0.9, authenticated users who are authorized to access the GraphQL api module interface of FreePBX are able to execute arbitrary shell commands. Authenticated access to the api module is

How urgent is CVE-2026-75600?

Priority 45/100. High severity

Related CVEs

CVE-2026-45562 HIGH 7.2 UPGRADE FreePBX is an open source IP PBX
CVE-2026-54674 HIGH 8.8 UPGRADE FreePBX is an open source IP PBX
CVE-2026-54675 HIGH 8.8 UPGRADE FreePBX is an open source IP PBX
CVE-2026-54708 HIGH 8.8 UPGRADE FreePBX is an open source IP PBX
CVE-2026-54710 HIGH 8.8 UPGRADE FreePBX is an open source IP PBX

References

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