CVE-2025-71352
picklescan before 0.0.29 fails to detect the built-in Python trace.Trace.runctx function when used in pickle file reduce methods, allowing attackers to execute arbitrary code. Remote attackers can craft malicious pickle files with trace.Trace.runctx payloads that bypass picklescan detection and execute code upon pickle.load() invocation.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/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: 7.6
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.72%
- Percentil entre todas las CVEs puntuadas: 52
- 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.
- Explotación
T1203Exploitation for Client Executionexecution85 % - Impacto principal
T1059Command and Scripting Interpreterexecution80 % - Impacto secundario
T1005Data from Local Systemcollection60 %
UI:P requiere interacción del usuario (pickle.load() invocation); trace.Trace.runctx permite ejecución arbitraria de código Python al desserializar fichero preparado (ejecución cliente), y potencial acceso a datos en memoria/sistema local.
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
Tecnologías afectadas (2)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-693
Referencias
JSON original (NVD)
Mostrar
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"timestamp": "2026-07-01T13:19:46.655162Z"
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"vulnerabilityResponseEffort": "NOT_DEFINED",
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"description": [
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"lang": "en",
"value": "picklescan before 0.0.29 fails to detect the built-in Python trace.Trace.runctx function when used in pickle file reduce methods, allowing attackers to execute arbitrary code. Remote attackers can craft malicious pickle files with trace.Trace.runctx payloads that bypass picklescan detection and execute code upon pickle.load() invocation."
},
{
"lang": "es",
"value": "picklescan anterior a 0.0.29 no logra detectar la función integrada de Python trace.Trace.runctx cuando se utiliza en métodos reduce de archivos pickle, lo que permite a los atacantes ejecutar código arbitrario. Atacantes remotos pueden crear archivos pickle maliciosos con cargas útiles de trace.Trace.runctx que eluden la detección de picklescan y ejecutan código al invocar pickle.load()."
}
],
"lastModified": "2026-10-05T16:10:00.443",
"sourceIdentifier": "disclosure@vulncheck.com"
}