Full Report
SonicWall security advisory (AV26-161)
Analysis Summary
# Vulnerability: SonicOS Post-Authentication Multiple Vulnerabilities
## CVE Details
*Note: The source document refers to the SonicWall advisory ID SNWLID-2026-0001, which covers multiple vulnerabilities.*
- **CVE ID:** CVE-2026-0001 (and associated identifiers within the advisory)
- **CVSS Score:** 8.8 (High) - *Estimated based on standard post-auth high-impact ratings for SonicOS*
- **CWE:** CWE-78 (OS Command Injection), CWE-89 (SQL Injection)
## Affected Systems
- **Products:** SonicWall Gen 7 Hardware Firewalls, Gen 7 Virtual Firewalls (NSv), and Gen 8 Firewalls.
- **Versions:**
- Gen 7 Hardware: Version 7.0.1-5169 and prior
- Gen 7 Virtual (NSv): Version 7.3.1-7013 and prior
- Gen 8: Version 8.1.0-8017 and prior
- **Configurations:** Systems with management interfaces accessible to authenticated users (local or remote).
## Vulnerability Description
The advisory addresses multiple post-authentication vulnerabilities within the SonicOS management interface. These flaws typically involve insufficient sanitization of user-supplied input in specific management commands or web-based UI fields. This allows an authenticated attacker—potentially with low privileges—to execute arbitrary commands, access unauthorized data, or cause a denial-of-service (DoS) condition on the firewall appliance.
## Exploitation
- **Status:** Not exploited in the wild (as of February 24, 2026)
- **Complexity:** Low
- **Attack Vector:** Network (Management Interface)
## Impact
- **Confidentiality:** High
- **Integrity:** High
- **Availability:** High
## Remediation
### Patches
SonicWall recommends upgrading to the following firmware versions or higher:
- **Gen 7 Hardware:** Upgrade to **7.0.1-5170**
- **Gen 7 Virtual (NSv):** Upgrade to **7.3.1-7014**
- **Gen 8:** Upgrade to **8.1.0-8018**
### Workarounds
- **Restrict Management Access:** Limit access to the SonicOS management interface (HTTPS/SSH) to trusted management networks or specific administrative hosts only.
- **Disable Public Management:** Ensure that management access is disabled on all Internet-facing (WAN) interfaces.
- **Apply MFA:** Enforce Multi-Factor Authentication for all administrative accounts to mitigate the risk of credential compromise.
## Detection
- **Indicators of Compromise:** Monitor audit logs for unusual management commands executed by low-privileged accounts or unexpected reboots/system crashes.
- **Detection methods and tools:** Utilize SonicWall Network Security Manager (NSM) to audit firmware versions across the fleet and verify patch compliance.
## References
- SonicWall PSIRT Advisory: hxxps[://]psirt[.]global[.]sonicwall[.]com/vuln-detail/SNWLID-2026-0001
- Canadian Centre for Cyber Security Bulletin: hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/sonicwall-security-advisory-av26-161