CVE

CVE-2021-21805

9.8

CVSScritical

Exploitable remotely over the internet · no authentication required.

Description

An OS Command Injection vulnerability exists in the ping.php script functionality of Advantech R-SeeNet v 2.4.12 (20.10.2020). A specially crafted HTTP request can lead to arbitrary OS command execution. An attacker can send a crafted HTTP request to trigger this vulnerability.

Attack Vector

Network

Privileges Req.

None

User Interaction

None

advantech

Updated Sep 18, 2026View on NVD →

S4E scanner

criticalProduct Based Web Vulnerabilities~10 seconds

CVE-2021-21805 Scanner

CVE-2021-21805 scanner - Command Injection vulnerability in Advantech R-SeeNet

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