Is CVE-2021-23895 actively exploited?

No active exploitation of CVE-2021-23895 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-23895 be exploited remotely?

Partially. CVE-2021-23895 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2021-23895?

CVE-2021-23895 has a CVSS score of 8.0 (HIGH).

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HIGH

CVE-2021-23895

CWE-502Published: June 2, 2021· Updated: Jun 17, 2026

8.0

CVSS v3.1

Official Description

Deserialization of untrusted data vulnerability in McAfee Database Security (DBSec) prior to 4.8.2 allows a remote authenticated attacker to create a reverse shell with administrator privileges on the DBSec server via carefully constructed Java serialized object sent to the DBSec server.

NVD Source

Technical Analysis

CVE-2021-23895 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

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 8.0.

From a weakness classification perspective (CWE-502): Insecure deserialization vulnerabilities allow attackers to inject malicious objects during deserialization, potentially enabling remote code execution.