OS Command Injection Vulnerability in TOTOLINK CA300-PoE Router
CVE-2025-6620

5.3MEDIUM

Key Information:

Vendor

Totolink
Status
Ca300-poe
Vendor
CVE Published:
25 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6620?

A vulnerability exists in TOTOLINK CA300-PoE version 6.2c.884 that allows for OS command injection through improper handling of the FileName argument in the setUpgradeUboot function of the upgrade.so file. This security flaw can be exploited remotely, enabling potential attackers to compromise device functionality and integrity. Due to the public disclosure of this exploit, users must take immediate action to secure their devices against potential threats.

Affected Version(s)

CA300-PoE 6.2c.884

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.

CVE-2025-6620 - Proof of Concept

References

https://vuldb.com/?id.313838
vdb-entrytechnical-description
https://vuldb.com/?ctiid.313838
signaturepermissions-required
https://vuldb.com/?submit.602265
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

pjqwudi (VulDB User)
.
CVE-2025-6620 : OS Command Injection Vulnerability in TOTOLINK CA300-PoE Router