Full Report
Multiple vulnerabilities have been discovered in SonicWall SMA1000 Series Appliances, the most severe of which could allow for remote code execution. SonicWall Secure Mobile Access (SMA) 1000 Series appliances are enterprise-grade secure access and SSL VPN gateways. Successful exploitation of the most severe vulnerability could allow an unauthenticated, remote attacker to reach internal functionality and perform unauthorized operations on an affected appliance.
Analysis Summary
# Vulnerability: Multiple Flaws in SonicWall SMA1000 Series (RCE/SSRF)
## CVE Details
- **CVE ID:** CVE-2026-102255 (Critical), CVE-2026-102256, CVE-2026-102257, CVE-2026-102258
- **CVSS Score:** High/Critical (Specific numerical scores not provided in text, but categorized as "High Risk")
- **CWE:**
- CVE-2026-102255: CWE-918 (Server-Side Request Forgery)
- CVE-2026-102256: CWE-78 (OS Command Injection)
- CVE-2026-102257: CWE-22 (Path Traversal / "Zip Slip")
- CVE-2026-102258: CWE-79 (Stored Cross-Site Scripting)
## Affected Systems
- **Products:** SonicWall SMA1000 Series (Models: 6210, 7210, 8200v)
- **Versions:**
- 12.4.3-03526 (platform-hotfix) and older
- 12.5.0-02952 (platform-hotfix) and older
- **Configurations:** Systems running the WorkPlace interface are specifically targeted by the SSRF flaw.
## Vulnerability Description
The primary threat stems from an **unauthenticated pre-authentication SSRF** (CVE-2026-102255) in the WorkPlace interface caused by an unintended alternate access path. This allows an attacker to bypass authentication to reach internal functionality.
Furthermore, the appliance suffers from **Post-Authentication OS Command Injection** (CVE-2026-102256) and **Zip Slip Path Traversal** (CVE-2026-102257). While these require credentials, they can be **chained** with the SSRF to achieve Remote Code Execution (RCE) and full system compromise without prior valid credentials.
## Exploitation
- **Status:** Not exploited in the wild (as of October 12, 2026); no PoC currently mentioned.
- **Complexity:** Medium (Chaining required for unauthenticated RCE).
- **Attack Vector:** Network.
## Impact
- **Confidentiality:** High (Unauthorized access to internal data/functionality).
- **Integrity:** High (Ability to write files and execute arbitrary OS commands).
- **Availability:** High (Potential for full system takeover).
## Remediation
### Patches
SonicWall has released updates to address these vulnerabilities. Administrators should update to versions newer than:
- 12.4.3-03526 (platform-hotfix)
- 12.5.0-02952 (platform-hotfix)
### Workarounds
No specific configuration workarounds were provided in the advisory; immediate patching of public-facing VPN gateways is the recommended course of action.
## Detection
- **Indicators of Compromise:** Monitor logs for unusual requests to the WorkPlace interface, specifically looking for unintended access paths or requests directed to internal resources.
- **Detection methods and tools:** Perform automated vulnerability scans of internal and external enterprise assets using SCAP-compliant tools.
## References
- SonicWall Advisory: hxxps[://]www[.]sonicwall[.]com/support/notices/product-notice-sma-1000-series-affected-by-multiple-vulnerabilities-snwlid-2026-0017/kA1VN000002QP3G0AW
- CVE-2026-102255: hxxps[://]cve[.]mitre[.]org/cgi-bin/cvename[.]cgi?name=CVE-2026-102255
- CVE-2026-102256: hxxps[://]cve[.]mitre[.]org/cgi-bin/cvename[.]cgi?name=CVE-2026-102256
- CVE-2026-102257: hxxps[://]cve[.]mitre[.]org/cgi-bin/cvename[.]cgi?name=CVE-2026-102257
- CVE-2026-102258: hxxps[://]cve[.]mitre[.]org/cgi-bin/cvename[.]cgi?name=CVE-2026-102258