VULNERABILITY INTELLIGENCE

CVE-2021-21911

CVSS score7.8 HIGH
EPSS probability0.32%
CISA KEVNot currently listed
Published2021-12-22
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

A privilege escalation vulnerability exists in the Windows version of installation for Advantech R-SeeNet Advantech R-SeeNet 2.4.15 (30.07.2021). A specially-crafted file can be replaced in the system to escalate privileges to NT SYSTEM authority. An attacker can provide a malicious file to trigger this vulnerability.

Weakness classification

  • CWE-269: Improper Privilege Management
  • CWE-276: Incorrect Default Permissions

Primary references