Is CVE-2020-15373 actively exploited?

No active exploitation of CVE-2020-15373 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-15373 be exploited remotely?

Yes. CVE-2020-15373 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-15373?

CVE-2020-15373 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2020-15373

CWE-119Published: September 25, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Multiple buffer overflow vulnerabilities in REST API in Brocade Fabric OS versions v8.2.1 through v8.2.1d, and 8.2.2 versions before v8.2.2c could allow remote unauthenticated attackers to perform various attacks.

NVD Source

Technical Analysis

CVE-2020-15373 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.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.