What is CVE-2022-35521?

CVE-2022-35521 is a critical-severity vulnerability in Wavlink Wn530h4. CVSS score: 9.8/10. Published 2022-08-10.

How severe is CVE-2022-35521?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Wavlink Wn530h4

CVE-2022-35521

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.

Published 2022-08-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.023 (82.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

References

github.com/TyeYeah/othercveinfo/blob/main/wavlink/README.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-35521?: CVE-2022-35521 is a critical-severity vulnerability in Wavlink Wn530h4. CVSS score: 9.8/10. Published 2022-08-10.
How severe is CVE-2022-35521?: Critical severity. CVSS v3 base score is 9.8 out of 10.