Security Digest · Vulnerability record · Known exploited
CVE-2026-9586: Sangoma Switchvox SQL Injection Vulnerability
Exploited in the wild (CISA KEV). An unauthenticated SQL injection vulnerability exists in Sangoma Switchvox SMB Edition 8.3 (104997).
CISA KEV · added 2026-09-02 CVSS 9.3 Critical EPSS 19.0% · p97 Act now
Should you act?
Exploited: patch now if you run it
CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Yes, if you run Sangoma Switchvox. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2026-09-02, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2026-09-05; treat that as the outer limit, not the target.
- EPSS 19.0%, percentile 97: FIRST’s model estimates a 19.0% chance of exploitation activity in the next 30 days, higher than 97% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Editorial verdict: Act now. Sangoma Switchvox CVE-2026-9586: Pre-Auth SQLi to RCE — A single unauthenticated request turns an unpatched Switchvox PBX into a shell; if yours is below 8.4.0.2 and reachable from the internet, upgrade today and check it for compromise.
What it is
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.
CISA’s summary
Sangoma Switchvox contains a SQL injection vulnerability which allows an unauthenticated remote attacker to execute arbitrary SQL statements against the backend PostgreSQL database using a single crafted request, including database operations and remote code execution.
Weakness type: CWE-89.
Product: Sangoma Switchvox · Assigned by: SRA · Published: 2026-07-17
Affected and fixed versions
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| Sangoma | Switchvox SMB Edition | 8.3 (104997) < 8.4.0.2 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| SRA | 4.0 | 9.3 Critical | 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 |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Attack requirements: none
- Privileges required: none (no login)
- User interaction: none
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: added 2026-09-02; federal due date 2026-09-05. Known ransomware use: Unknown.
- CISA required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
- CISA SSVC assessment: exploitation active, automatable yes, technical impact total.
- FIRST EPSS (model of 2026-10-21): 18.98% probability of exploitation activity in the next 30 days; percentile 97.
Timeline
- — erroneo.us brief: Sangoma Switchvox CVE-2026-9586: Pre-Auth SQLi to RCE
- — CVE record published by SRA
- — Added to CISA’s Known Exploited Vulnerabilities catalog
- — CVE record last updated
- — CISA remediation deadline for US federal agencies
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vendor and project advisories, patches
- sangomakb.atlassian.net sangomakb.atlassian.net
Vulnerability records
- CVE.org record CVE-2026-9586 cve.org
- NVD entry CVE-2026-9586 nvd.nist.gov
Government
- CISA Known Exploited Vulnerabilities catalog entry cisa.gov
- Listed in CISA KEV notes (cisa.gov) cisa.gov
- Listed in CISA KEV notes (cisa.gov) cisa.gov
Other references from the CVE record and advisory
- labs.sra.io labs.sra.io
- horizon3.ai horizon3.ai
All exploited Sangoma vulnerabilities · Today’s Security Digest