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CVE-2026-9586: Sangoma Switchvox SQL Injection Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2026-09-02
• EPSS: 19.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-07-17 · updated 2026-10-24
• Weakness: CWE-89

Description

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.

Affected products

• Sangoma Switchvox SMB Edition: from 8.2.2.1 before 8.4.0.2 — fixed in 8.4.0.2

How to fix

Upgrade to a fixed version: Sangoma Switchvox SMB Edition 8.4.0.2. Check the vendor advisory for mitigations.

References

• https://labs.sra.io/posts/switchvox/
• https://sangomakb.atlassian.net/wiki/spaces/Switchvox/pages/1802371073/Switchvox+-+Release+Notes+Version+8.4.0.2+July+14+2026
• https://horizon3.ai/attack-research/disclosures/cve-2026-9586-sangoma-switchvox-rce/#
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-9586

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