Vulnerability-Lookup

GHSA-PJPJ-3W53-J35F

Vulnerability from github – Published: 2026-03-07 15:30 – Updated: 2026-03-07 15:30

Details

A flaw has been found in Wavlink WL-NU516U1 240425. This affects the function ota_new_upgrade of the file /cgi-bin/adm.cgi. This manipulation of the argument model causes command injection. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure.

Severity ?

4.7 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

2.0 (Low)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-3661"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-74"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-07T14:16:05Z",
    "severity": "MODERATE"
  },
  "details": "A flaw has been found in Wavlink WL-NU516U1 240425. This affects the function ota_new_upgrade of the file /cgi-bin/adm.cgi. This manipulation of the argument model causes command injection. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure.",
  "id": "GHSA-pjpj-3w53-j35f",
  "modified": "2026-03-07T15:30:16Z",
  "published": "2026-03-07T15:30:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3661"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jinhao118/cve/blob/main/WAVLINK_1.md"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.349550"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.349550"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?submit.758227"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/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",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-3661 (GCVE-0-2026-3661)

Vulnerability from cvelistv5 – Published: 2026-03-07 13:32 – Updated: 2026-03-07 13:32

Title

Wavlink WL-NU516U1 adm.cgi ota_new_upgrade command injection

Summary

Severity ?

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

4.7 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

4.7 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

CWE

CWE-77 - Command Injection
CWE-74 - Injection

Assigner

VulDB

References

URL

Tags

	https://vuldb.com/?id.349550	vdb-entrytechnical-description
	https://vuldb.com/?ctiid.349550	signaturepermissions-required
	https://vuldb.com/?submit.758227	third-party-advisory
	https://github.com/jinhao118/cve/blob/main/WAVLINK_1.md	exploit

Impacted products

	Vendor	Product	Version
	Wavlink	WL-NU516U1	Affected: 240425 cpe:2.3:o:wavlink:wl-nu516u1_firmware::::::::

Credits

allanp0e (VulDB User) VulDB

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:*"
          ],
          "product": "WL-NU516U1",
          "vendor": "Wavlink",
          "versions": [
            {
              "status": "affected",
              "version": "240425"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "allanp0e (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw has been found in Wavlink WL-NU516U1 240425. This affects the function ota_new_upgrade of the file /cgi-bin/adm.cgi. This manipulation of the argument model causes command injection. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 5.8,
            "vectorString": "AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-77",
              "description": "Command Injection",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-74",
              "description": "Injection",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-07T13:32:07.913Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-349550 | Wavlink WL-NU516U1 adm.cgi ota_new_upgrade command injection",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.349550"
        },
        {
          "name": "VDB-349550 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.349550"
        },
        {
          "name": "Submit #758227 | wavlink WL-NU516U1-A M16U1_V240425 Command Injection",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.758227"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/jinhao118/cve/blob/main/WAVLINK_1.md"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-03-06T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-03-06T01:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-03-06T21:34:12.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "Wavlink WL-NU516U1 adm.cgi ota_new_upgrade command injection"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-3661",
    "datePublished": "2026-03-07T13:32:07.913Z",
    "dateReserved": "2026-03-06T20:29:01.605Z",
    "dateUpdated": "2026-03-07T13:32:07.913Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-PJPJ-3W53-J35F

CVE-2026-3661 (GCVE-0-2026-3661)

Tags

Sightings

Nomenclature