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CVE-2026-12852

Estado: AnalizadaAlta (8.7)—

In Bouncy Castle for Java before 1.85, MLS wire decoder allocates attacker-declared opaque length before bounds check.

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 AV:N/PR:N/UI:N indica explotación remota sin privilegios (T1190). CWE-789 (asignación de memoria sin validación) en decoder MLS causa denegación de servicio por agotamiento de memoria (T1499.004). BouncyCastle es aplicación expuesta de servidor.

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

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Bouncycastle — Bc-java

CWE

Referencias

JSON original (NVD)

Mostrar
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          "packageURL": "pkg:maven/org.bouncycastle/bcmls-jdk18on",
          "packageName": "bcmls",
          "programFiles": [
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          "collectionURL": "https://www.bouncycastle.org/download/bouncy-castle-java/",
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  "published": "2026-08-03T04:16:39.640",
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      "url": "https://github.com/bcgit/bc-java/commit/a747038bb5bbd5e29fb2b7607ab38af1fd8d1790",
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