CVE-2026-9586
Sangoma Switchvox SQL Injection Vulnerability
Sangoma Switchvox
An unauthenticated SQL injection vulnerability exists in Sangoma Switchvox SMB Edition 8.3 (104997). The /pa endpoint processes XML content beginning with <PolycomIPPhone> and directly concatenates the user-controlled PhoneIP value into PostgreSQL queries without sanitization or parameterization. An unauthenticated remote attacker can execute arbitrary SQL statements against the backend PostgreSQL database using a single crafted request, including database operations and remote code execution.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 2 September 2026. US federal agencies were required to remediate it by 5 September 2026.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 11.8%, which is higher than 95.8% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2026-9586 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2026-9586.
What does CVE-2026-9586 affect?
CVE-2026-9586 affects Sangoma Switchvox. An unauthenticated SQL injection vulnerability exists in Sangoma Switchvox SMB Edition 8.3 (104997). The /pa endpoint processes XML content beginning with <PolycomIPPhone> and directly concatenates the user-controlled PhoneIP value into PostgreSQL queries without sanitization or parameterization. An unauthenticated remote attacker can execute arbitrary SQL statements against the backend PostgreSQL database using a single crafted request, including database operations and remote code execution.
How severe is CVE-2026-9586?
CVE-2026-9586 is rated CRITICAL with a CVSS base score of 9.8. EPSS puts the probability of exploitation in the next 30 days at 11.8%, higher than 95.8% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 5 September 2026.
How should organisations respond to CVE-2026-9586?
Apply the vendor patch for Sangoma Switchvox as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.