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CVE-2026-7823

Estado: AplazadaAlta (8.9)—

A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function setAppFilterCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument enable results in os command injection. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vector CVSS AV:N/PR:N/UI:N indica explotación remota sin autenticación (T1190). CWE-78 confirma inyección de comandos OS, resultando en ejecución de código arbitrario (T1059).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementVulnerability ScanningRestrict Web-Based ContentNetwork SegmentationLimit Software InstallationLimit Access to Resource Over Network

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Totolink — A8000ruAI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2026-7823",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-7823",
          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "poc"
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            {
              "automatable": "yes"
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          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
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        "obtainAllPrivilege": false,
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    "cvssMetricV31": [
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          "scope": "UNCHANGED",
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    ],
    "cvssMetricV40": [
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        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
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          "Automatable": "NOT_DEFINED",
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          "valueDensity": "NOT_DEFINED",
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          "exploitMaturity": "PROOF_OF_CONCEPT",
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          "modifiedAttackVector": "NOT_DEFINED",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
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          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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  "affected": [
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      "affectedData": [
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          "cpes": [
            "cpe:2.3:o:totolink:a8000ru_firmware:*:*:*:*:*:*:*:*"
          ],
          "vendor": "Totolink",
          "product": "A8000RU",
          "versions": [
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              "status": "affected",
              "version": "7.1cu.643_b20200521"
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  "published": "2026-05-05T05:16:01.110",
  "references": [
    {
      "url": "https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_330/README.md",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/submit/807775",
      "source": "cna@vuldb.com"
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    {
      "url": "https://vuldb.com/vuln/361075",
      "source": "cna@vuldb.com"
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    {
      "url": "https://vuldb.com/vuln/361075/cti",
      "source": "cna@vuldb.com"
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    {
      "url": "https://www.totolink.net/",
      "source": "cna@vuldb.com"
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  "weaknesses": [
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      "description": [
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          "value": "CWE-77"
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          "lang": "en",
          "value": "CWE-78"
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      ]
    }
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  "descriptions": [
    {
      "lang": "en",
      "value": "A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function setAppFilterCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument enable results in os command injection. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks."
    }
  ],
  "lastModified": "2026-06-17T11:03:00.713",
  "sourceIdentifier": "cna@vuldb.com"
}