Stack-Based Buffer Overflow Vulnerability in Totolink NR1800X by Totolink
CVE-2026-15701
9.3CRITICAL
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2026-15701?
A weakness has been identified in the Totolink NR1800X router, specifically in the lighttpd component's Form_Logout function located in the file /formLogout.htm. This vulnerability allows for a stack-based buffer overflow due to improper handling of the Host argument, which can be exploited by attackers remotely. With the exploit being publicly available, it poses a significant threat to networks utilizing this router version.
Affected Version(s)
NR1800X 9.1.0u.6279_B20210910
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:
9.3
Severity:
CRITICAL
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
fuguang (VulDB User)