CVE-2025-14994
Unknown Unknown - Not Provided
Remote Stack-Based Buffer Overflow in Tenda FH1201/FH1206 HTTP Handler

Publication date: 2025-12-21

Last updated on: 2025-12-21

Assigner: VulDB

Description
A flaw has been found in Tenda FH1201 and FH1206 1.2.0.14(408)/1.2.0.8(8155). This impacts the function strcat of the file /goform/webtypelibrary of the component HTTP Request Handler. This manipulation of the argument webSiteId causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been published and may be used.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2025-12-21
Last Modified
2025-12-21
Generated
2026-06-16
AI Q&A
2025-12-21
EPSS Evaluated
2026-06-15
NVD
CVE-2025-14994
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
tenda fh1206 1.2.0.8
tenda fh1201 1.2.0.14
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-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 Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability is a stack-based buffer overflow found in Tenda FH1201 and FH1206 routers' firmware versions 1.2.0.14(408) and 1.2.0.8(8155). It occurs in the HTTP Request Handler component, specifically in the strcat function within the /goform/webtypelibrary file. The flaw arises when the webSiteId parameter is manipulated with excessively large input, causing the strcat function to overflow the stack buffer due to lack of proper bounds checking. This overflow can be exploited remotely without authentication, potentially allowing attackers to execute arbitrary code or cause denial of service. [2, 3, 4]

Impact Analysis

This vulnerability can severely impact affected devices by compromising their confidentiality, integrity, and availability. An attacker can remotely exploit the flaw to execute arbitrary code or cause a denial of service, potentially taking control of the device or disrupting its normal operation. Since the exploit is easy to execute and publicly available, the risk of attacks is high. There are currently no known mitigations, so affected devices should be replaced to avoid exploitation. [2, 3, 4]

Detection Guidance

This vulnerability can be detected by monitoring HTTP requests to the endpoint /goform/webtypelibrary for unusually large or malformed values in the webSiteId parameter, which triggers the stack-based buffer overflow. Detection may involve capturing and analyzing HTTP traffic to identify such suspicious requests. Specific commands are not provided in the resources, but using network traffic analysis tools like tcpdump or Wireshark to filter HTTP requests to /goform/webtypelibrary and inspecting the webSiteId parameter size could help detect exploitation attempts. [2, 3, 4]

Mitigation Strategies

Immediate mitigation steps include replacing the affected Tenda FH1201 and FH1206 devices with alternative products, as no known mitigations or countermeasures currently exist. Additionally, restricting remote access to the affected devices and monitoring for exploit attempts may reduce risk until replacement is possible. [2]

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2025-14994. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart