EUVD-2026-21752
GHSA-mfv2-j96x-vw56
CVSS Vector
CVSS:4.0/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
Lifecycle Timeline
2Description
A security flaw has been discovered in Tenda F451 1.0.0.7_cn_svn7958. This vulnerability affects the function fromqossetting of the file /goform/qossetting. Performing a manipulation of the argument qos results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.
Analysis
Stack-based buffer overflow in Tenda F451 router firmware version 1.0.0.7_cn_svn7958 allows remote authenticated attackers to execute arbitrary code with high impact on confidentiality, integrity, and availability. The vulnerability resides in the fromqossetting function's handling of the 'qos' parameter in /goform/qossetting endpoint. …
Sign in for full analysis, threat intelligence, and remediation guidance.
Remediation
Within 24 hours: Identify all Tenda F451 devices running firmware 1.0.0.7_cn_svn7958 across your network using network inventory tools. Within 7 days: Implement network segmentation to restrict administrative access to affected routers and enforce strong authentication on all router management interfaces; check Tenda security advisories for available firmware updates beyond current version. …
Sign in for detailed remediation steps.
Priority Score
Share
External POC / Exploit Code
Leaving vuln.today