CVE-2026-3703 (GCVE-0-2026-3703)

Vulnerability from cvelistv5 – Published: 2026-03-08 04:32 – Updated: 2026-03-08 04:32
VLAI?
Title
Wavlink NU516U1 login.cgi sub_401A10 out-of-bounds write
Summary
A flaw has been found in Wavlink NU516U1 251208. This affects the function sub_401A10 of the file /cgi-bin/login.cgi. Executing a manipulation of the argument ipaddr can lead to out-of-bounds write. The attack may be performed from remote. The exploit has been published and may be used. Upgrading the affected component is recommended. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
CWE
Assigner
Impacted products
Vendor Product Version
Wavlink NU516U1 Affected: 251208
Create a notification for this product.
Credits
haimianbaobao (VulDB User) VulDB
Show details on NVD website

{
  "containers": {
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      "affected": [
        {
          "product": "NU516U1",
          "vendor": "Wavlink",
          "versions": [
            {
              "status": "affected",
              "version": "251208"
            }
          ]
        }
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          "type": "reporter",
          "value": "haimianbaobao (VulDB User)"
        },
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          "type": "coordinator",
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        }
      ],
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        }
      ],
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          "name": "VDB-349649 | Wavlink NU516U1 login.cgi sub_401A10 out-of-bounds write",
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          "tags": [
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            "permissions-required"
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          "url": "https://vuldb.com/?ctiid.349649"
        },
        {
          "name": "Submit #759226 | Wavlink NU516U1  V251208 Stack-based Buffer Overflow",
          "tags": [
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        {
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          "url": "https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/ipaddr.md"
        },
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        },
        {
          "tags": [
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          "url": "https://dl.wavlink.com/firmware/RD/WINSTAR_NU516U1-WO-A-2026-02-27-2fcf6ae-mt7628-squashfs-sysupgrade.bin"
        }
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          "time": "2026-03-07T01:00:00.000Z",
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          "time": "2026-03-07T10:01:31.000Z",
          "value": "VulDB entry last update"
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      ],
      "title": "Wavlink NU516U1 login.cgi sub_401A10 out-of-bounds write"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-3703",
    "datePublished": "2026-03-08T04:32:09.200Z",
    "dateReserved": "2026-03-07T08:56:07.678Z",
    "dateUpdated": "2026-03-08T04:32:09.200Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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