CVE-2025-7758
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-07-17

Last updated on: 2025-07-23

Assigner: VulDB

Description
A vulnerability, which was classified as critical, has been found in TOTOLINK T6 up to 4.1.5cu.748_B20211015. Affected by this issue is the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument ip leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
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Meta Information
Published
2025-07-17
Last Modified
2025-07-23
Generated
2026-05-07
AI Q&A
2025-07-18
EPSS Evaluated
2026-05-05
NVD
EUVD
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
totolink t6_firmware v4.1.5cu.748_b20211015
totolink t6 3
Helpful Resources
Exploitability
CWE
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KEV
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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-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.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is a critical buffer overflow issue in the TOTOLINK T6 router firmware up to version 4.1.5cu.748_B20211015. It occurs in the setDiagnosisCfg function within the /cgi-bin/cstecgi.cgi HTTP POST request handler. By manipulating the 'ip' argument, an attacker can cause a buffer overflow, potentially allowing remote exploitation.


How can this vulnerability impact me? :

The vulnerability can be exploited remotely to cause a buffer overflow, which may lead to unauthorized code execution, system crashes, or complete compromise of the affected device. This can result in loss of control over the device, data breaches, or disruption of network services.


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