CVE-2026-6121
Tenda F451 httpd WrlclientSet stack-based overflow
Description
A flaw has been found in Tenda F451 1.0.0.7. Affected by this vulnerability is the function WrlclientSet of the file /goform/WrlclientSet of the component httpd. This manipulation of the argument GO causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been published and may be used.
INFO
Published Date :
April 12, 2026, 8:16 a.m.
Last Modified :
April 29, 2026, 8:02 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update Tenda F451 firmware to the latest version.
- Restrict remote access to the httpd service.
- Apply security patches if available.
- Monitor network for suspicious activity.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-6121.
| URL | Resource |
|---|---|
| https://github.com/Jimi-Lab/cve/issues/12 | Broken Link |
| https://vuldb.com/submit/792865 | Third Party Advisory VDB Entry |
| https://vuldb.com/vuln/356984 | Third Party Advisory VDB Entry |
| https://vuldb.com/vuln/356984/cti | Permissions Required VDB Entry |
| https://www.tenda.com.cn/ | Product |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-6121 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-6121
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-6121 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-6121 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 29, 2026
Action Type Old Value New Value Added CPE Configuration AND OR *cpe:2.3:o:tenda:f451_firmware:1.0.0.7:*:*:*:*:*:*:* OR cpe:2.3:h:tenda:f451:-:*:*:*:*:*:*:* Added Reference Type VulDB: https://github.com/Jimi-Lab/cve/issues/12 Types: Broken Link Added Reference Type VulDB: https://vuldb.com/submit/792865 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/vuln/356984 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/vuln/356984/cti Types: Permissions Required, VDB Entry Added Reference Type VulDB: https://www.tenda.com.cn/ Types: Product -
New CVE Received by [email protected]
Apr. 12, 2026
Action Type Old Value New Value Added Description A flaw has been found in Tenda F451 1.0.0.7. Affected by this vulnerability is the function WrlclientSet of the file /goform/WrlclientSet of the component httpd. This manipulation of the argument GO causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been published and may be used. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CVSS V2 (AV:N/AC:L/Au:S/C:C/I:C/A:C) Added CWE CWE-119 Added CWE CWE-121 Added Reference https://github.com/Jimi-Lab/cve/issues/12 Added Reference https://vuldb.com/submit/792865 Added Reference https://vuldb.com/vuln/356984 Added Reference https://vuldb.com/vuln/356984/cti Added Reference https://www.tenda.com.cn/