CVE-2026-6015
Stack-Based Buffer Overflow in Tenda AC9 POST Handler
Publication date: 2026-04-10
Last updated on: 2026-04-30
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| tenda | ac9_firmware | 15.03.02.13 |
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-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 exists in the Tenda AC9 device, specifically in the function formQuickIndex within the /goform/QuickIndex file, which handles POST requests.
The issue arises from improper handling of the PPPOEPassword argument, which can be manipulated to cause a stack-based buffer overflow.
This buffer overflow can be exploited remotely, meaning an attacker does not need physical access to the device to launch an attack.
The exploit for this vulnerability has been publicly disclosed.
How can this vulnerability impact me? :
Exploitation of this vulnerability can lead to a stack-based buffer overflow, which may allow an attacker to execute arbitrary code on the affected device.
Since the attack can be launched remotely, it increases the risk of unauthorized access or control over the device.
Potential impacts include disruption of device functionality, compromise of network security, and possible further attacks on connected systems.