CVE-2026-7097
Received Received - Intake
Remote Buffer Overflow in Tenda F456 httpd Component

Publication date: 2026-04-27

Last updated on: 2026-04-30

Assigner: VulDB

Description
A weakness has been identified in Tenda F456 1.0.0.5. This issue affects the function fromwebExcptypemanFilter of the file /goform/webExcptypemanFilter of the component httpd. This manipulation of the argument page causes buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-04-27
Last Modified
2026-04-30
Generated
2026-06-16
AI Q&A
2026-04-27
EPSS Evaluated
2026-06-15
NVD
CVE-2026-7097
EUVD
EUVD-2026-25788
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
tenda f456_firmware 1.0.0.5
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
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 Quick Actions
Instant insights powered by AI
Executive Summary

The CVE-2026-7097 vulnerability affects the Tenda F456 router, version 1.0.0.5. It is a stack-based buffer overflow found in the httpd service, specifically within the function fromwebExcptypemanFilter.

This function processes a user-supplied parameter named "page" and assigns it to a variable which is then passed to the sprintf function without any bounds checking. This lack of length validation allows an attacker to overflow the stack buffer by sending an excessively long "page" parameter in a POST request to the endpoint /goform/webExcptypemanFilter.

Impact Analysis

Exploiting this vulnerability can lead to denial of service (DoS) or remote code execution (RCE) on the affected device.

Detection Guidance

This vulnerability can be detected by sending a specially crafted POST request to the endpoint /goform/webExcptypemanFilter on the Tenda F456 router version 1.0.0.5. The request should include an excessively long string as the value of the "page" parameter to test for buffer overflow.

A detection command example using curl would be:

  • curl -X POST http://<target-ip>/goform/webExcptypemanFilter -d "page=$(python3 -c 'print("a"*1000)')"

If the device is vulnerable, this request may cause a denial of service or unexpected behavior indicating the buffer overflow.

Mitigation Strategies

Immediate mitigation steps include restricting access to the vulnerable endpoint /goform/webExcptypemanFilter by implementing network-level controls such as firewall rules to block unauthorized or external access.

Additionally, monitor network traffic for suspicious POST requests targeting the "page" parameter on this endpoint.

Since the vulnerability allows remote code execution, it is recommended to update the device firmware to a version where this issue is fixed once available.

Compliance Impact

The provided information does not specify how the CVE-2026-7097 vulnerability impacts compliance with common standards and regulations such as GDPR or HIPAA.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-7097. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart