SonicWall security advisory (AV26-884)
Canada's Cyber Centre issued advisory AV26-884 warning that SonicWall Network Security Manager On-Prem 4.3.0 and earlier are affected by multiple vulnerabilities.
The Canadian Centre for Cyber Security published advisory AV26-884 on September 4, 2026, flagging SonicWall Network Security Manager (NSM) On-Prem across VMware, Hyper-V, Azure, and KVM deployments, versions 4.3.0 and earlier, as affected by multiple vulnerabilities. The advisory does not list CVE identifiers, exploit details, or in-the-wild exploitation. Administrators are encouraged to review the referenced links and apply updates as they become available.
- SonicWall NSM On-Prem 4.3.0 and earlier affected across VMware, Hyper-V, Azure, and KVM.
- No CVE identifiers or exploitation details included in the advisory.
- Canadian Cyber Centre urges administrators to apply available updates.
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Serial Number: AV26-884
Date: September 4, 2026
As of September 4, 2026, SonicWall is affected by vulnerabilities in the following product:
- Network Security Manager (NSM) On-Prem (VMWare, Hyper-V, Azure and KVM)
- 4.3.0 and earlier versions
The Cyber Centre encourages users and administrators to review the provided web links and apply any necessary updates as they become available.
Text extracted automatically; images, tables and formatting may be missing. Original: https://cyber.gc.ca/en/alerts-advisories/sonicwall-security-advisory-av26-884