Is CVE-2022-35521 actively exploited?

No active exploitation of CVE-2022-35521 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-35521 be exploited remotely?

Yes. CVE-2022-35521 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-35521?

CVE-2022-35521 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2022-35521

CRITICAL

CVE-2022-35521

NVD-CWE-OtherPublished: August 10, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 firewall.cgi has no filtering on parameters: remoteManagementEnabled, blockPortScanEnabled, pingFrmWANFilterEnabled and blockSynFloodEnabled, which leads to command injection in page /man_security.shtml.

NVD Source

Risk Analysis

The firewall.cgi script fails to filter security configuration parameters, leading to command injection. This critical vulnerability has a CVSS score of 9.8 and is remotely exploitable.

No public exploit is known, and it is not in the CISA KEV. The vulnerability is remotely exploitable.

Recommended Action

Update the device firmware to the latest version to patch this command injection flaw.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2022-35521 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.