A security flaw has been discovered in Tenda W20E 15.11.0.6(1068_1546_841)_CN_TDC. Impacted is the function formQOSRuleDel of the file /goform/delQos of the component QoS Rule Deletion. Performing a manipulation of the argument qosIndex results in stack-based buffer overflow.
Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 6
https://github.com/paueger/mycve/blob/main/Tenda_W20E/4.md
cna@vuldb.com
https://vuldb.com/cve/CVE-2026-19823
cna@vuldb.com
https://vuldb.com/submit/869021
cna@vuldb.com
https://vuldb.com/vuln/389956
cna@vuldb.com
https://vuldb.com/vuln/389956/cti
cna@vuldb.com
https://www.tenda.com.cn/
cna@vuldb.com