CVE-2022-50994 Details
Description
DrayTek Vigor 2960 firmware versions prior to 1.5.1.4 contain an OS command injection vulnerability in the CGI login handler that allows unauthenticated remote attackers to execute arbitrary commands by injecting shell metacharacters into the formpassword parameter. Attackers can exploit unsanitized input passed to the otp_check.sh script to achieve remote code execution with web server privileges. Exploitation requires knowledge of a valid username and that the target account has MOTP authentication enabled.
A command injection vulnerability has been identified in the DrayTek Vigor 2960 router's firmware versions prior to 1.5.1.4. This vulnerability resides in the CGI login handler, where unauthenticated remote attackers can execute arbitrary commands by injecting shell metacharacters into the formpassword parameter. The exploitation takes advantage of unsanitized input directed to the otp_check.sh script, allowing remote code execution with web server privileges. Successful exploitation requires knowledge of a valid username and that the target account has MOTP authentication enabled.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 8, 2026CISA-ADP
Assessed May 8, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| DrayTek Vigor 2960 | < 1.5.1.4 |
CPE
Remediation | |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 8, 2026 | New CVE Received | [email protected] |
Volerion