How severe is CVE-2023-26567?

CVE-2023-26567 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-26567 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26567?

CVE-2023-26567 primarily affects Sangoma Freepbx Linux 7. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-26567?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-26567 published?

CVE-2023-26567 was published on 2023-04-26 and last updated on 2026-06-17.

CVE-2023-26567

CVE-2023-26567 is a high-severity vulnerability in Sangoma Freepbx Linux 7 with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-522.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-522
Affected product: Sangoma Freepbx Linux 7
Published: 2023-04-26
Last modified: 2026-06-17

Description

Sangoma FreePBX 1805 through 2302 (when obtained as a ,.ISO file) places AMPDBUSER, AMPDBPASS, AMPMGRUSER, and AMPMGRPASS in the list of global variables. This exposes cleartext authentication credentials for the Asterisk Database (MariaDB/MySQL) and Asterisk Manager Interface. For example, an attacker can make a /ari/asterisk/variable?variable=AMPDBPASS API call.

Frequently asked questions

What is CVE-2023-26567?: Sangoma FreePBX 1805 through 2302 (when obtained as a ,.ISO file) places AMPDBUSER, AMPDBPASS, AMPMGRUSER, and AMPMGRPASS in the list of global variables. This exposes cleartext authentication credentials for the Asterisk Database (MariaDB/MySQL) and Asterisk Manager Interface. For example, an attacker can make a /ari/asterisk/variable?variable=AMPDBPASS API call.
How severe is CVE-2023-26567?: CVE-2023-26567 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-26567 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26567?: CVE-2023-26567 primarily affects Sangoma Freepbx Linux 7. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-26567?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-26567 published?: CVE-2023-26567 was published on 2023-04-26 and last updated on 2026-06-17.

References

Affected products (14)

cpe:2.3:a:sangoma:freepbx_linux_7:1805:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:freepbx_linux_7:1904:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:freepbx_linux_7:1910:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:freepbx_linux_7:2002:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:freepbx_linux_7:2008:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:freepbx_linux_7:2011:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:freepbx_linux_7:2104:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:freepbx_linux_7:2105:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:freepbx_linux_7:2109:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:freepbx_linux_7:2112:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:freepbx_linux_7:2201:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:freepbx_linux_7:2202:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:freepbx_linux_7:2203:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:freepbx_linux_7:2302:*:*:*:*:*:*:*

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