CVE-2020-27339
Estado: ModificadaMedia (6.7)—
In the kernel in Insyde InsydeH2O 5.x, certain SMM drivers did not correctly validate the CommBuffer and CommBufferSize parameters, allowing callers to corrupt either the firmware or the OS memory. The fixed versions for this issue in the AhciBusDxe, IdeBusDxe, NvmExpressDxe, SdHostDriverDxe, and SdMmcDeviceDxe drivers are 05.16.25, 05.26.25, 05.35.25, 05.43.25, and 05.51.25 (for Kernel 5.1 through 5.5).
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 6.7
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.32%
- Percentil entre todas las CVEs puntuadas: 23
- 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).
Tecnologías afectadas (17)
Insyde — Insydeh2oSiemens — Ruggedcom Apr1808 FirmwareSiemens — Simatic Field PG M5 FirmwareSiemens — Simatic Field PG M6 FirmwareSiemens — Simatic Ipc127e FirmwareSiemens — Simatic Ipc227g FirmwareSiemens — Simatic Ipc277g FirmwareSiemens — Simatic Ipc327g FirmwareSiemens — Simatic Ipc377g FirmwareSiemens — Simatic Ipc427e FirmwareSiemens — Simatic Ipc477e FirmwareSiemens — Simatic Ipc477e PRO FirmwareSiemens — Simatic Ipc627e FirmwareSiemens — Simatic Ipc647e FirmwareSiemens — Simatic Ipc677e FirmwareSiemens — Simatic Ipc847e FirmwareSiemens — Simatic Itp1000 Firmware
CWE
- CWE-20
Referencias
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
- https://security.netapp.com/advisory/ntap-20220216-0005/
- https://www.insyde.com/security-pledge/SA-2021001
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
- https://security.netapp.com/advisory/ntap-20220216-0005/
- https://www.insyde.com/security-pledge/SA-2021001
- https://www.kb.cert.org/vuls/id/796611
- https://cert-portal.siemens.com/productcert/html/ssa-306654.html
JSON original (NVD)
Mostrar
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