CVE-2026-6483

Wavlink WL-WN530H4 internet.cgi snprintf os command injection

Published Apr 17, 2026 CVSS 4.0 · 8.6 High EPSS 13.4% KEV · Not listed
Description
A vulnerability was found in Wavlink WL-WN530H4 20220721. This vulnerability affects the function strcat/snprintf of the file /cgi-bin/internet.cgi. The manipulation results in os command injection. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 2026.04.16 is able to resolve this issue. Upgrading the affected component is recommended.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wavlink wl-wn530h4
Vendors & Products Wavlink wl-wn530h4
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A vulnerability was found in Wavlink WL-WN530H4 20220721. This vulnerability affects the function strcat/snprintf of the file /cgi-bin/internet.cgi. The manipulation results in os command injection. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 2026.04.16 is able to resolve this issue. Upgrading the affected component is recommended.
Title Wavlink WL-WN530H4 internet.cgi snprintf os command injection
First Time appeared Wavlink
Wavlink wl-wn530h4 Firmware
Weaknesses CWE-77
CWE-78
CPEs cpe:2.3:o:wavlink:wl-wn530h4_firmware:*:*:*:*:*:*:*:*
Vendors & Products Wavlink
Wavlink wl-wn530h4 Firmware
References
Metrics cvssV2_0

{'score': 8.3, 'vector': 'AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:OF/RC:C'}

cvssV3_0

{'score': 7.2, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C'}

cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS: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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
Apr 17, 2026, 10:53 AM
Reserved
Apr 17, 2026, 5:35 AM
Status
Deferred
Published
Apr 17, 2026, 11:16 AM
Modified
Oct 25, 2026, 11:10 PM