Is CVE-2021-40604 actively exploited?

No active exploitation of CVE-2021-40604 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-40604 be exploited remotely?

Yes. CVE-2021-40604 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-40604?

CVE-2021-40604 has a CVSS score of 9.1 (CRITICAL).

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CRITICAL

CVE-2021-40604

CWE-918Published: June 13, 2022· Updated: Jun 17, 2026

9.1

CVSS v3.1

Official Description

A Server-Side Request Forgery (SSRF) vulnerability in IPS Community Suite before 4.6.2 allows remote authenticated users to request arbitrary URLs or trigger deserialization via phar protocol when generating class names dynamically. In some cases an exploitation is possible by an unauthenticated user.

NVD Source

Technical Analysis

CVE-2021-40604 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), with a CVSS base score of 9.1.