CVE-2025-57071 Details
Description
Tenda G3 v3.0br_V15.11.0.17 was discovered to contain a stack overflow in the vpnUsers parameter in the formAddVpnUsers function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.
A stack overflow vulnerability has been identified in the Tenda G3 router, specifically in the firmware version G3V3.0br_V15.11.0.17. The issue arises in the formAddVpnUsers function, where user-supplied data is improperly handled. The vpnUsers parameter is passed to the strncpy function without a length validation, creating an opportunity for remote attackers to craft requests that overflow the stack-based buffer. This vulnerability can lead to a denial-of-service condition or potentially allow for remote code execution.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Sep 10, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/vulnDetailRecord/VulforDevice/blob/main/Tenda/G3/formAddVpnUsers.md | CISA-ADP | ExploitThird Party Advisory |
| https://github.com/vulnDetailRecord/VulforDevice/blob/main/Tenda/G3/formAddVpnUsers.md | [email protected] | ExploitThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-121 | Stack-based Buffer Overflow | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| tenda g3 firmware | <= 15.11.0.17\(9502\) |
CPE
Remediation
| |
| tenda g3 | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Sep 18, 2025 | Initial Analysis | [email protected] |
| Sep 10, 2025 | CVE Modified | CISA-ADP |
| Sep 9, 2025 | New CVE Received | [email protected] |