CVE-2026-7827

Estado: AplazadaCrítica (9.2)—

Un desbordamiento de búfer en la pila en la función _RdbLoadEntity de los decodificadores gráficos RDB (src/serializers/decoders/*/decode_graph_entities.c) en FalkorDB anteriores a 4.18.4 permite a un atacante remoto que puede emitir comandos de replicación de Redis (por ejemplo, contra una instancia sin contraseña configurada) causar una denegación de servicio y posiblemente ejecutar código arbitrario suministrando un flujo RDB manipulado con un recuento de propiedades de entidad controlado por el atacante. El recuento dimensiona dos matrices de longitud variable en la pila del hilo sin límite superior, y el decodificador las rellena posteriormente con valores suministrados por el atacante.

Traducción automática del texto original de NVD (en inglés).

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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
Puntuación base: 9.2

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.58%
Percentil entre todas las CVEs puntuadas: 47
Fecha de la puntuación: 14/10/2026

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.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access85 %
Impacto principalT1059 Command and Scripting Interpreterexecution80 %
Impacto secundarioT1499.004 Application or System Exploitationimpact75 %

Desbordamiento de búfer en decodificador RDB remoto sin autenticación requerida (AV:N, PR:N); permite ejecución de código arbitrario o DoS mediante flujo RDB malformado con propiedad entity count no validada.

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 Management Filter Network Traffic Vulnerability Scanning Restrict Web-Based Content Network Segmentation Limit Software Installation

Tecnologías afectadas (1)

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

Falkordb — Falkordb^AI

CWE

CWE-121

Referencias

JSON original (NVD)

Mostrar

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          "repo": "https://github.com/FalkorDB/FalkorDB",
          "vendor": "FalkorDB",
          "modules": [
            "RDB serializer / graph decoder"
          ],
          "product": "FalkorDB",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "4.18.4",
              "versionType": "semver"
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          ],
          "programFiles": [
            "src/serializers/decoders/current/v19/decode_graph_entities.c",
            "src/serializers/decoders/prev/v18/decode_graph_entities.c",
            "src/serializers/decoders/prev/v17/decode_graph_entities.c",
            "src/serializers/decoders/prev/v16/decode_graph_entities.c",
            "src/serializers/decoders/prev/v15/decode_graph_entities.c",
            "src/serializers/decoders/prev/v14/decode_graph_entities.c",
            "src/serializers/decoders/prev/v13/decode_graph_entities.c",
            "src/serializers/decoders/prev/v12/decode_graph_entities.c",
            "src/serializers/decoders/prev/v11/decode_graph_entities.c",
            "src/serializers/decoders/prev/v10/decode_graph_entities.c"
          ],
          "collectionURL": "https://github.com/FalkorDB/FalkorDB",
          "defaultStatus": "unaffected",
          "programRoutines": [
            {
              "name": "_RdbLoadEntity"
            }
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  "published": "2026-10-09T05:16:45.327",
  "references": [
    {
      "url": "https://github.com/FalkorDB/FalkorDB/commit/7d15431aadf37588fadc2578b90c3afb5e8daa94",
      "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c"
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      "url": "https://github.com/FalkorDB/FalkorDB/releases/tag/v4.18.4",
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          "value": "CWE-121"
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      "lang": "en",
      "value": "A stack-based buffer overflow in the _RdbLoadEntity function of the RDB graph decoders (src/serializers/decoders/*/decode_graph_entities.c) in FalkorDB before 4.18.4 allows a remote attacker who can issue Redis replication commands (for example, against an instance with no password configured) to cause a denial of service and possibly execute arbitrary code by supplying a crafted RDB stream with an attacker-controlled entity property count. The count sizes two variable-length arrays on the thread stack with no upper bound, and the decoder then fills them with attacker-supplied values."
    }
  ],
  "lastModified": "2026-10-09T17:16:50.163",
  "sourceIdentifier": "33c584b5-0579-4c06-b2a0-8d8329fcab9c"
}