Stack-Based Buffer Overflow in Tenda HG7HG9 and HG10 Routers
CVE-2026-11553
8.7HIGH
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2026-11553?
A stack-based buffer overflow vulnerability exists in the formPPPEdit function located in the '/boaform/formPPPEdit' file of Tenda HG7HG9 and HG10 routers. When manipulated, the 'encodename' argument can lead to exploitation, allowing attackers to remotely execute malicious code. Given that the exploit has been made public, this vulnerability poses a significant risk to users if not addressed promptly.
Affected Version(s)
HG10 300001138_en_xpon
HG7HG9 300001138_en_xpon
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
CVSS V4
Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None
Timeline
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved
Credit
zhihua xie (VulDB User)