CVE-2026-9586

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.

Scoring

• CVSS: 9.8 (CRITICAL, 3.1)
• EPSS exploitation probability: Not yet available
• EPSS percentile: Not yet available

CISA KEV status

• Added to KEV: 2026-09-02
• Remediation due date: 2026-09-05
• Known ransomware campaign use: Unknown

Weakness types (CWE)

• CWE-89

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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