Wavlink WL-WN530H4 internet.cgi snprintf os command injection
Summary
| CVE | CVE-2026-6483 |
|---|---|
| State | PUBLISHED |
| Assigner | VulDB |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-04-17 11:16:11 UTC |
| Updated | 2026-04-22 20:22:50 UTC |
| 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. |
Risk And Classification
Primary CVSS: v4.0 7.3 HIGH from [email protected]
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS: 0.000320000 probability, percentile 0.091740000 (date 2026-04-22)
Problem Types: CWE-77 | CWE-78 | CWE-78 OS Command Injection | CWE-77 Command Injection
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 7.3 | HIGH | 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/C... |
| 4.0 | CNA | DECLARED | 8.6 | HIGH | 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 |
| 3.1 | [email protected] | Primary | 7.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 7.2 | HIGH | 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 |
| 3.0 | CNA | DECLARED | 7.2 | HIGH | 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 |
| 2.0 | [email protected] | Secondary | 8.3 | AV:N/AC:L/Au:M/C:C/I:C/A:C | |
| 2.0 | CNA | DECLARED | 8.3 | AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:OF/RC:C |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
NonePrivileges Required
HighUser Interaction
NoneConfidentiality
HighIntegrity
HighAvailability
HighSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
HighUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
HighUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Wavlink | WL-WN530H4 | affected 20220721 | Not specified |
| CNA | Wavlink | WL-WN530H4 | unaffected 2026.04.16 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/... | [email protected] | github.com | |
| vuldb.com/submit/783055 | [email protected] | vuldb.com | |
| dl.wavlink.com/firmware/RD/root_uImage_WN530H4-A_2026.04.16.bin | [email protected] | dl.wavlink.com | |
| vuldb.com/vuln/358021 | [email protected] | vuldb.com | |
| vuldb.com/vuln/358021/cti | [email protected] | vuldb.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: ST4R (VulDB User) (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-04-17T00:00:00.000Z | Advisory disclosed |
| CNA | 2026-04-17T02:00:00.000Z | VulDB entry created |
| CNA | 2026-04-17T07:40:59.000Z | VulDB entry last update |
There are currently no legacy QID mappings associated with this CVE.