Is CVE-2021-32521 actively exploited?

No active exploitation of CVE-2021-32521 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-32521 be exploited remotely?

Yes. CVE-2021-32521 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-32521?

CVE-2021-32521 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2021-32521

CRITICAL

CVE-2021-32521

CWE-259Published: July 7, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Use of MAC address as an authenticated password in QSAN Storage Manager, XEVO, SANOS allows local attackers to escalate privileges. Suggest contacting with QSAN and refer to recommendations in QSAN Document.

NVD Source

Technical Analysis

CVE-2021-32521 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

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 9.8.