# SonicWall NSM On-Prem RCE Flaws Patched

Published: 2026-10-15 · Severity: routine · Sectors: technology
Canonical: https://vorant.io/reports/842c4972-83b2-518a-8954-a6aa9beed4c6/sonicwall-nsm-on-prem-rce-flaws-patched

> CERT-FR warns of two vulnerabilities in SonicWall Network Security Manager On-Prem enabling remote code execution and security bypass; patch to 4.4.0.

CERT-FR issued an advisory covering two vulnerabilities (CVE-2026-100232 and CVE-2026-96540) affecting SonicWall Network Security Manager (NSM) On-Prem editions running on VMWare, Hyper-V, Azure and KVM, versions prior to 4.4.0. The flaws allow an attacker to achieve remote arbitrary code execution and to bypass security policy controls on the affected management platform.

No evidence of active exploitation is mentioned in the bulletin. SonicWall published the corresponding security advisory (SNWLID-2026-0018) on 14 October 2026 with patches addressing both CVEs. Defenders operating SonicWall NSM On-Prem should upgrade to version 4.4.0 or later as soon as possible, given NSM's role as a centralized security management platform whose compromise could affect downstream policy enforcement across managed SonicWall devices.

## Mentioned in this report

- Vulnerabilities: CVE-2026-100232, CVE-2026-96540

Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1320

---

This is the free public brief from Vorant Threat Intelligence. When citing, attribute "Vorant" and link https://vorant.io/reports/842c4972-83b2-518a-8954-a6aa9beed4c6/sonicwall-nsm-on-prem-rce-flaws-patched.
In the app the same report carries its extracted indicators, its detections (Splunk SPL already written, plus Elastic and Microsoft KQL where they apply), live profiles of the actors and CVEs it names, and the vendor research on the same campaign. Slack alerts fire on the vendors, sectors and countries a reader follows. A new account starts with three days of all of it, no card: https://vorant.io/signup