CVE-2026-4975
Received Received - Intake
Stack-Based Buffer Overflow in Tenda AC15 POST Handler

Publication date: 2026-03-27

Last updated on: 2026-04-03

Assigner: VulDB

Description
A vulnerability has been found in Tenda AC15 15.03.05.19. This affects the function formSetCfm of the file /goform/setcfm of the component POST Request Handler. The manipulation of the argument funcpara1 leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
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Meta Information
Published
2026-03-27
Last Modified
2026-04-03
Generated
2026-06-16
AI Q&A
2026-03-27
EPSS Evaluated
2026-06-15
NVD
CVE-2026-4975
EUVD
EUVD-2026-16811
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
tenda ac15_firmware 15.03.05.19_multi
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-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).
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.
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Executive Summary

This vulnerability exists in the Tenda AC15 router, specifically in the function formSetCfm within the /goform/setcfm file, which handles POST requests.

An attacker can manipulate the argument funcpara1 to cause a stack-based buffer overflow, which means they can overwrite parts of the memory stack, potentially leading to arbitrary code execution or system crashes.

The attack can be performed remotely, meaning an attacker does not need physical access to the device to exploit this vulnerability.

The exploit has been publicly disclosed, increasing the risk of it being used in attacks.

Impact Analysis

Exploitation of this vulnerability can lead to severe impacts including unauthorized remote code execution, allowing attackers to take control of the affected device.

This can result in disruption of network services, interception or manipulation of network traffic, and potential use of the device as a foothold for further attacks within a network.

Because the vulnerability allows remote exploitation without user interaction, it poses a high risk to the security and availability of the device.

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