CVE-2025-8940
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-08-14

Last updated on: 2025-08-19

Assigner: VulDB

Description
A vulnerability was identified in Tenda AC20 up to 16.03.08.12. Affected by this vulnerability is the function strcpy of the file /goform/saveParentControlInfo. The manipulation of the argument Time leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
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Meta Information
Published
2025-08-14
Last Modified
2025-08-19
Generated
2026-05-06
AI Q&A
2025-08-14
EPSS Evaluated
2026-05-05
NVD
EUVD
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
tenda ac20_firmware From 16.03.08.0 (inc) to 16.03.08.12 (inc)
tenda ac20 *
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-120 The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
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.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability exists in the Tenda AC20 router firmware up to version 16.03.08.12. It involves a buffer overflow in the strcpy function within the /goform/saveParentControlInfo file. The vulnerability is triggered by manipulating the 'Time' argument, which can be exploited remotely.


How can this vulnerability impact me? :

Exploiting this vulnerability can lead to a buffer overflow, which may allow an attacker to execute arbitrary code or cause a denial of service on the affected device. Since the attack can be launched remotely, it poses a significant security risk to the device and potentially the network it is connected to.


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