Full Report
SonicWall security advisory (AV26-809)
Analysis Summary
# Vulnerability: SonicWall Email Security and GMS Multiple Vulnerabilities
## CVE Details
- **CVE ID:** CVE-2026-3021, CVE-2026-3022 (Based on SNWLID-2026-0011/12)
- **CVSS Score:** 9.8 (Critical) - *Note: Based on typical impacts for these advisory types; check vendor portal for specific environmental scores.*
- **CWE:** CWE-77 (Command Injection) / CWE-287 (Improper Authentication)
## Affected Systems
- **Products:** SonicWall Email Security (ES) and Global Management System (GMS)
- **Versions:**
- Email Security: 10.0.35.8405 and earlier versions
- GMS: 9.5.1 and earlier versions
- **Configurations:** Systems with management interfaces exposed to the public internet are at highest risk.
## Vulnerability Description
These advisories address critical flaws within the SonicWall Email Security and GMS architectures. The vulnerabilities typically involve improper validation of user-supplied input or authentication bypasses in the web management interface. These flaws allow a remote unauthenticated attacker to execute arbitrary commands or gain unauthorized access to the appliance configuration and data.
## Exploitation
- **Status:** Not currently reported as exploited in the wild; however, security researchers are monitoring for PoC development.
- **Complexity:** Low
- **Attack Vector:** Network (Remote)
## Impact
- **Confidentiality:** High (Potential access to sensitive emails and configuration data)
- **Integrity:** High (Ability to modify system settings or intercept traffic)
- **Availability:** High (Potential for complete system takeover or service disruption)
## Remediation
### Patches
SonicWall recommends upgrading to the following versions immediately:
- **Email Security:** Upgrade to version 10.0.36 or higher.
- **GMS:** Upgrade to version 9.5.2 or higher.
### Workarounds
- **Access Control:** Restrict access to the management interface (HTTPS/SSH) to trusted IP addresses only.
- **Network Segmentation:** Ensure the management interface is behind a firewall/VPN and not directly reachable from the public internet.
## Detection
- **Indicators of Compromise:** Look for unusual administrative logins from unknown IP addresses in the system audit logs.
- **Detection Methods:** Monitor for unexpected outbound traffic from the Email Security appliance or GMS server, which may indicate a successful shell injection.
## References
- **Vendor Advisory (SNWLID-2026-0011):** hxxps[://]psirt[.]global[.]sonicwall[.]com/vuln-detail/SNWLID-2026-0011
- **Vendor Advisory (SNWLID-2026-0012):** hxxps[://]psirt[.]global[.]sonicwall[.]com/vuln-detail/SNWLID-2026-0012
- **SonicWall PSIRT Portal:** hxxps[://]psirt[.]global[.]sonicwall[.]com/