CVE-2025-14655
BaseFortify
Publication date: 2025-12-14
Last updated on: 2026-02-24
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| tenda | ac20_firmware | 16.03.08.12 |
| tenda | ac20 | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-119 | The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data. |
| CWE-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
| CWE-121 | A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a stack-based buffer overflow in the Tenda AC20 router firmware version 16.03.08.12. It occurs in the function formSetRebootTimer within the /goform/SetSysAutoRebbotCfg endpoint of the httpd component. By manipulating the rebootTime parameter with crafted input, an attacker can overflow the stack buffer. This flaw allows remote attackers to potentially cause denial-of-service or execute arbitrary commands on the device without authentication. [1, 2]
How can this vulnerability impact me? :
Exploitation of this vulnerability can impact the confidentiality, integrity, and availability of the affected device. An attacker can remotely cause denial-of-service conditions or execute arbitrary commands, potentially taking full control of the router. This can disrupt network operations and compromise sensitive data passing through the device. [1, 2]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
Detection can be performed by monitoring HTTP requests to the /goform/SetSysAutoRebbotCfg endpoint on Tenda AC20 routers running firmware version 16.03.08.12, specifically looking for suspicious or unusually large rebootTime parameter values that could trigger the stack-based buffer overflow. Network intrusion detection systems (NIDS) can be configured to alert on such requests. Additionally, reviewing logs for unexpected reboots or crashes may indicate exploitation attempts. Specific commands are not provided in the resources. [1, 2]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include replacing the affected Tenda AC20 router firmware version 16.03.08.12 with an alternative or updated version if available, as no known countermeasures or patches exist. Limiting remote access to the device and restricting HTTP access to trusted networks may reduce exposure. Monitoring for exploitation attempts and disabling the vulnerable service if possible are also recommended. [2]