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CVE-2026-2565

Estado: AnalizadaMedia (6.6)—

A weakness has been identified in Wavlink WL-NU516U1 20251208. Affected by this issue is the function sub_40785C of the file /cgi-bin/adm.cgi. This manipulation of the argument time_zone causes stack-based buffer overflow. The attack can be initiated remotely. The attack is considered to have high complexity. The exploitation is known to be difficult. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Wavlink — Wl-nu516u1 Firmware

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-2565",
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          "role": "CISA Coordinator",
          "options": [
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              "automatable": "no"
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          "version": "2.0.3",
          "timestamp": "2026-02-17T14:44:55.393843Z"
        }
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          "Automatable": "NOT_DEFINED",
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          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:H/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",
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          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
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          "modifiedAttackRequirements": "NOT_DEFINED",
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          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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      "affectedData": [
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          "product": "WL-NU516U1",
          "versions": [
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              "version": "20251208"
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  ],
  "published": "2026-02-16T17:18:09.360",
  "references": [
    {
      "url": "https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/time_zone.md",
      "tags": [
        "Exploit",
        "Third Party Advisory"
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    {
      "url": "https://vuldb.com/?ctiid.346172",
      "tags": [
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        "VDB Entry"
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      "source": "cna@vuldb.com",
      "description": [
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          "lang": "en",
          "value": "CWE-119"
        },
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A weakness has been identified in Wavlink WL-NU516U1 20251208. Affected by this issue is the function sub_40785C of the file /cgi-bin/adm.cgi. This manipulation of the argument time_zone causes stack-based buffer overflow. The attack can be initiated remotely. The attack is considered to have high complexity. The exploitation is known to be difficult. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way."
    },
    {
      "lang": "es",
      "value": "Se ha identificado una debilidad en Wavlink WL-NU516U1 20251208. Afectada por este problema es la función sub_40785C del archivo /cgi-bin/adm.cgi. Esta manipulación del argumento time_zone causa desbordamiento de búfer basado en pila. El ataque puede ser iniciado remotamente. El ataque se considera que tiene alta complejidad. La explotación se sabe que es difícil. El exploit ha sido puesto a disposición del público y podría ser utilizado para ataques. El proveedor fue contactado tempranamente sobre esta divulgación pero no respondió de ninguna manera."
    }
  ],
  "lastModified": "2026-06-17T10:31:19.797",
  "configurations": [
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  "sourceIdentifier": "cna@vuldb.com"
}