CVE-2026-9586 — Sangoma Switchvox SMB Edition
CISA KEVAs of 2026-09-02, CVE-2026-9586 is a CRITICAL-severity vulnerability in Sangoma Switchvox SMB Edition, CVSS v3.1 9.8, EPSS 1.0% (63.0th percentile). It is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-09-02), with a US federal remediation deadline of 2026-09-05. Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-9586, most recently “Active Exploitation of Sangoma Switchvox Unauthenticated SQL Injection (CVE-2026-9586) Deploying Reverse Shells”.
Last updated: 2026-09-02
What is CVE-2026-9586?
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.
The record classifies CVE-2026-9586 under weakness class CWE-89. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 67 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 9.8 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v4.0 base score
- 9.3
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 - EPSS (FIRST)
- 1.0% probability of exploitation in the next 30 days, higher than 63.0% of all scored CVEs
- CISA KEV
- Listed since 2026-09-02, federal remediation deadline 2026-09-05
- Threadlinqs priority
- 9/10 — CISA KEV-listed, which Threadlinqs floors at 9
- Published
- 2026-07-17, last modified 2026-09-02
Is CVE-2026-9586 being exploited?
CISA added CVE-2026-9586 to the Known Exploited Vulnerabilities catalog on 2026-09-02, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2026-09-05 under BOD 22-01. Weaponised exploit code for CVE-2026-9586 is publicly available. 2 public proof-of-concept repositories are tracked for this identifier. It currently carries a trending score of 52 in the Threadlinqs vulnerability feed.
- HORKimhab/CVE-2026-9586 (github)
- trickest/cve (trickest)
Affected products and versions
- Sangoma: Switchvox SMB Edition
How to fix CVE-2026-9586
Because CVE-2026-9586 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2026-09-05. No vendor patch reference has been recorded for CVE-2026-9586 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-9586
1 tracked threat in the Threadlinqs corpus references CVE-2026-9586, either in the campaign’s CVE list or as an indicator on the campaign record.
- Active Exploitation of Sangoma Switchvox Unauthenticated SQL Injection (CVE-2026-9586) Deploying Reverse Shells — CRITICAL · 2026-09-02
Sources
Enriched from CVE.org, NVD, FIRST EPSS, CISA KEV, public proof-of-concept repositories. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.
Vendor advisory and patch
Third-party advisory
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