CVE-2025-6621: totolink ca300-poe_firmware Command Injection

Vulnerability summary

CVE-2025-6621 is a critical (CVSS 9.8) Command Injection vulnerability in totolink ca300-poe_firmware. EPSS estimates a 2.45% chance of exploitation in the next 30 days, higher than 84.2% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 25-06-2025
   PublishedVulnerability first disclosed.
2. 26-06-2025
   Last modifiedVulnerability information updated.

Description

A vulnerability classified as critical has been found in TOTOLINK CA300-PoE 6.2c.884. This affects the function QuickSetting of the file ap.so. The manipulation of the argument hour/minute leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.