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4 vulnerabilities found for WL-NU516U1 by Wavlink
CVE-2026-4166 (GCVE-0-2026-4166)
Vulnerability from nvd – Published: 2026-03-15 05:32 – Updated: 2026-03-17 13:46
VLAI
Title
Wavlink WL-NU516U1 login.cgi sub_404F68 cross site scripting
Summary
A vulnerability was found in Wavlink WL-NU516U1 240425. The impacted element is the function sub_404F68 of the file /cgi-bin/login.cgi. The manipulation of the argument homepage/hostname results in cross site scripting. The attack can be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.351073 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.351073 | signaturepermissions-required |
| https://vuldb.com/?submit.769652 | third-party-advisory |
| https://vuldb.com/?submit.769653 | third-party-advisory |
| https://github.com/Litengzheng/vul_db/blob/main/W… | related |
| https://github.com/Litengzheng/vul_db/blob/main/W… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wavlink | WL-NU516U1 |
Affected:
240425
cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:* |
Credits
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CVE-2026-2566 (GCVE-0-2026-2566)
Vulnerability from nvd – Published: 2026-02-16 17:02 – Updated: 2026-02-23 10:12
VLAI
Title
Wavlink WL-NU516U1 adm.cgi sub_406194 stack-based overflow
Summary
A security vulnerability has been detected in Wavlink WL-NU516U1 up to 130/260. This affects the function sub_406194 of the file /cgi-bin/adm.cgi. Such manipulation of the argument firmware_url leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.346173 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.346173 | signaturepermissions-required |
| https://vuldb.com/?submit.751908 | third-party-advisory |
| https://github.com/Wlz1112/Wavlink-NU516U1-V25120… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wavlink | WL-NU516U1 |
Affected:
130
Affected: 260 cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:* |
Credits
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CVE-2026-4166 (GCVE-0-2026-4166)
Vulnerability from cvelistv5 – Published: 2026-03-15 05:32 – Updated: 2026-03-17 13:46
VLAI
Title
Wavlink WL-NU516U1 login.cgi sub_404F68 cross site scripting
Summary
A vulnerability was found in Wavlink WL-NU516U1 240425. The impacted element is the function sub_404F68 of the file /cgi-bin/login.cgi. The manipulation of the argument homepage/hostname results in cross site scripting. The attack can be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.351073 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.351073 | signaturepermissions-required |
| https://vuldb.com/?submit.769652 | third-party-advisory |
| https://vuldb.com/?submit.769653 | third-party-advisory |
| https://github.com/Litengzheng/vul_db/blob/main/W… | related |
| https://github.com/Litengzheng/vul_db/blob/main/W… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wavlink | WL-NU516U1 |
Affected:
240425
cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:* |
Credits
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CVE-2026-2566 (GCVE-0-2026-2566)
Vulnerability from cvelistv5 – Published: 2026-02-16 17:02 – Updated: 2026-02-23 10:12
VLAI
Title
Wavlink WL-NU516U1 adm.cgi sub_406194 stack-based overflow
Summary
A security vulnerability has been detected in Wavlink WL-NU516U1 up to 130/260. This affects the function sub_406194 of the file /cgi-bin/adm.cgi. Such manipulation of the argument firmware_url leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.346173 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.346173 | signaturepermissions-required |
| https://vuldb.com/?submit.751908 | third-party-advisory |
| https://github.com/Wlz1112/Wavlink-NU516U1-V25120… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wavlink | WL-NU516U1 |
Affected:
130
Affected: 260 cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:* |
Credits
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"shortName": "CISA-ADP"
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"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:*"
],
"product": "WL-NU516U1",
"vendor": "Wavlink",
"versions": [
{
"status": "affected",
"version": "130"
},
{
"status": "affected",
"version": "260"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "haimianbaobao (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A security vulnerability has been detected in Wavlink WL-NU516U1 up to 130/260. This affects the function sub_406194 of the file /cgi-bin/adm.cgi. Such manipulation of the argument firmware_url leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 8.6,
"baseSeverity": "HIGH",
"vectorString": "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",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 7.2,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 7.2,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 8.3,
"vectorString": "AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "Memory Corruption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-23T10:12:56.936Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-346173 | Wavlink WL-NU516U1 adm.cgi sub_406194 stack-based overflow",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/?id.346173"
},
{
"name": "VDB-346173 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.346173"
},
{
"name": "Submit #751908 | Wavlink NU516U1 V251208 Stack-based Buffer Overflow",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.751908"
},
{
"tags": [
"exploit"
],
"url": "https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/firmware_url.md"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-02-15T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-02-15T01:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-02-20T10:46:00.000Z",
"value": "VulDB entry last update"
}
],
"title": "Wavlink WL-NU516U1 adm.cgi sub_406194 stack-based overflow"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-2566",
"datePublished": "2026-02-16T17:02:06.381Z",
"dateReserved": "2026-02-15T19:40:06.995Z",
"dateUpdated": "2026-02-23T10:12:56.936Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}