CVE-2022-49956
Estado: ModificadaAlta (7.8)—
In the Linux kernel, the following vulnerability has been resolved:
staging: rtl8712: fix use after free bugs
_Read/Write_MACREG callbacks are NULL so the read/write_macreg_hdl() functions don't do anything except free the "pcmd" pointer. It results in a use after free. Delete them.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 7.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.24%
- Percentil entre todas las CVEs puntuadas: 14
- Fecha de la puntuación: 5/10/2026
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
T1068Exploitation for Privilege Escalationprivilege escalation85 %
AV:L/PR:L sin UI permite escalada local. Use-after-free en driver de kernel tras liberación de memoria puede llevar a ejecución de código arbitrario con privilegios elevados.
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 (1)
CWE
- CWE-416
Referencias
- https://git.kernel.org/stable/c/19e3f69d19801940abc2ac37c169882769ed9770
- https://git.kernel.org/stable/c/376e15487fec837301d888068a3fcc82efb6171a
- https://git.kernel.org/stable/c/7dce6b0ee7d78667d6c831ced957a08769973063
- https://git.kernel.org/stable/c/9fd6170c5e2d0ccd027abe26f6f5ffc528e1bb27
- https://git.kernel.org/stable/c/b1727def850904e4b8ba384043775672841663a1
- https://git.kernel.org/stable/c/d0aac7146e96bf39e79c65087d21dfa02ef8db38
- https://git.kernel.org/stable/c/dc02aaf950015850e7589696521c7fca767cea77
- https://git.kernel.org/stable/c/e230a4455ac3e9b112f0367d1b8e255e141afae0
JSON original (NVD)
Mostrar
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