CVE-2026-103111

Estado: Pendiente de análisisAlta (7.6)—

PCRE2 before 10.49, when there is an attacker-controlled regular expression and certain JIT API usage, allows an out-of-bounds write with arbitrary data.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
Puntuación base: 7.6

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.21%
Percentil entre todas las CVEs puntuadas: 11
Fecha de la puntuación: 6/10/2026

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.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement72 %
Impacto principalT1059 Command and Scripting Interpreterexecution65 %
Impacto secundarioT1565.001 Stored Data Manipulationimpact58 %

CWE-787 (escritura fuera de límites) en PCRE2 con control de expresión regular permite corrupción de memoria/RCE. AV:N/PR:L requiere acceso a servicio remoto; impacto I:H sugiere modificación de código/datos.

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 Disable or Remove Feature or Program Vulnerability Scanning Threat Intelligence Program Restrict Web-Based Content Restrict File and Directory Permissions

Tecnologías afectadas (1)

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

Pcre — Pcre2^AI

CWE

CWE-787

Referencias

JSON original (NVD)

Mostrar

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          "role": "CISA Coordinator",
          "options": [
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          "version": "2.0.3",
          "timestamp": "2026-09-30T18:44:17.818308Z"
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        {
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  "published": "2026-09-30T05:16:45.863",
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  "lastModified": "2026-10-04T00:16:35.563",
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