CVE-2026-6483Public exploitNetwork attack vector

Root command execution via unsanitized routing parameters

Published Apr 17, 2026 · Updated Apr 17, 2026

OS command injection in Wavlink WL-WN530H4 20220721 allows remote authenticated users to execute commands as root via static routes. The set_add_routing handler in /cgi-bin/internet.cgi concatenates POST routing parameters into a shell command with strcat and snprintf, then passes it to popen without sanitization. Administrative access to the web interface is required; injected shell metacharacters run arbitrary commands with root privileges.

CVSS severity7.2
High
EPSS probability13.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Wavlink WL-WN530H4 20220721 allows remote authenticated users to execute commands as root via static routes. The set_add_routing handler in /cgi-bin/internet.cgi concatenates POST routing parameters into a shell command with strcat and snprintf, then passes it to popen without sanitization. Administrative access to the web interface is required; injected shell metacharacters run arbitrary commands with root privileges.

The record

CVE
CVE-2026-6483
Published
Apr 17, 2026
Updated
Apr 17, 2026
Vendor
Wavlink
Product
WL-WN530H4
Classifications
CWE-78, CWE-77, T1059.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 17, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=20220721

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Wavlink · WL-WN530H4version=20220721

Published CVSS scores

8.3VulDBAV:N/AC:L/Au:M/C:C/I:C/A:C
7.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
7.2VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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