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

Vulnerability from cvelistv5 – Published: 2026-03-07 13:32 – Updated: 2026-03-07 13:32
VLAI?
Title
Wavlink WL-NU516U1 adm.cgi ota_new_upgrade command injection
Summary
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 ?
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
Assigner
References
Impacted products
Vendor Product Version
Wavlink WL-NU516U1 Affected: 240425
    cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
allanp0e (VulDB User) VulDB
Show details on NVD website
To clipboard 

{
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          "product": "WL-NU516U1",
          "vendor": "Wavlink",
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        }
      ],
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        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
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          "tags": [
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        },
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          "tags": [
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        },
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          "value": "Advisory disclosed"
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          "time": "2026-03-06T01:00:00.000Z",
          "value": "VulDB entry created"
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          "lang": "en",
          "time": "2026-03-06T21:34:12.000Z",
          "value": "VulDB entry last update"
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      ],
      "title": "Wavlink WL-NU516U1 adm.cgi ota_new_upgrade command injection"
    }
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  "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"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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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.