VULNERABILITY INTELLIGENCE

CVE-2021-21805

CVSS score9.8 CRITICAL
EPSS probability69.84%
CISA KEVNot currently listed
Published2021-08-05
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • talos-cna@cisco.com: CWE-78
  • nvd@nist.gov: CWE-78

Primary references