How severe is CVE-2019-12148?

CVE-2019-12148 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-12148 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-12148?

CVE-2019-12148 affects Sangoma Session Border Controller Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-12148?

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

When was CVE-2019-12148 published?

CVE-2019-12148 was published on 2019-10-22 and last updated on 2026-06-17.

CVE-2019-12148

CVE-2019-12148 is a critical-severity vulnerability in Sangoma Session Border Controller Firmware with a CVSS 3.x base score of 9.8. 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-88.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-88
Affected product: Sangoma Session Border Controller Firmware
Published: 2019-10-22
Last modified: 2026-06-17

Description

The Sangoma Session Border Controller (SBC) 2.3.23-119 GA web interface is vulnerable to an authentication bypass via an argument injection vulnerability involving special characters in the username field. Upon successful exploitation, a remote unauthenticated user can login into the device's admin web portal without providing any credentials. This affects /var/webconfig/gui/Webconfig.inc.php.

Frequently asked questions

What is CVE-2019-12148?: The Sangoma Session Border Controller (SBC) 2.3.23-119 GA web interface is vulnerable to an authentication bypass via an argument injection vulnerability involving special characters in the username field. Upon successful exploitation, a remote unauthenticated user can login into the device's admin web portal without providing any credentials. This affects /var/webconfig/gui/Webconfig.inc.php.
How severe is CVE-2019-12148?: CVE-2019-12148 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-12148 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-12148?: CVE-2019-12148 affects Sangoma Session Border Controller Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-12148?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-12148 published?: CVE-2019-12148 was published on 2019-10-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:sangoma:session_border_controller_firmware:2.3.23-119-ga:*:*:*:*:*:*:*

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