🛡️ CVE-2022-35521 — wn530h4-firmware

🔴 CVSS 9.8 — Critical ⚠️ Exploit Public NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

CVE-2022-35521 is recorded against 5 packages.

  • wn530h4-firmware
  • wn531p3-firmware
  • wn533a8-firmware
  • wn535g3-firmware
  • wn572hp3-firmware

Timeline and source

Published on 10 August 2022 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

github.com
github.com

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ⚠️ Yes
Source NVD
Published 2022-08-10
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
wn530h4-firmware — —
wn531p3-firmware — —
wn533a8-firmware — —
wn535g3-firmware — —
wn572hp3-firmware — —

Similar Threats

Exploit Protection

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CVE-2022-35521 carries CVSS 9.8 Critical rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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