Command Injection Vulnerability in Totolink A8000RU Web Management Interface
CVE-2026-9387
9.3CRITICAL
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2026-9387?
A security flaw has been identified in the Totolink A8000RU's web management interface, specifically within the function setUpgradeFW of the /cgi-bin/cstecgi.cgi file. By manipulating the resetFlags argument, an attacker can execute OS commands remotely, exposing the system to potential exploitation. The details of the exploit have been made public, raising concerns for users of the affected product.
Affected Version(s)
A8000RU 7.1cu.643_b20200521
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
LtzHuster (VulDB User)