Is CVE-2021-23892 actively exploited?

No active exploitation of CVE-2021-23892 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-23892 be exploited remotely?

No. CVE-2021-23892 requires local access to exploit.

What is the CVSS score of CVE-2021-23892?

CVE-2021-23892 has a CVSS score of 7.0 (HIGH).

HOME VULNERABILITIESCVE-2021-23892

HIGH

CVE-2021-23892

CWE-59Published: May 12, 2021· Updated: Jun 17, 2026

7.0

CVSS v3.1

Official Description

By exploiting a time of check to time of use (TOCTOU) race condition during the Endpoint Security for Linux Threat Prevention and Firewall (ENSL TP/FW) installation process, a local user can perform a privilege escalation attack to obtain administrator privileges for the purpose of executing arbitrary code through insecure use of predictable temporary file locations.

NVD Source

Technical Analysis

CVE-2021-23892 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.0.