CVE-2021-27391
Estado: ModificadaCrítica (9.8)—
A vulnerability has been identified in APOGEE MBC (PPC) (P2 Ethernet) (All versions >= V2.6.3), APOGEE MEC (PPC) (P2 Ethernet) (All versions >= V2.6.3), APOGEE PXC Compact (BACnet) (All versions < V3.5.3), APOGEE PXC Compact (P2 Ethernet) (All versions >= V2.8), APOGEE PXC Modular (BACnet) (All versions < V3.5.3), APOGEE PXC Modular (P2 Ethernet) (All versions >= V2.8), TALON TC Compact (BACnet) (All versions < V3.5.3), TALON TC Modular (BACnet) (All versions < V3.5.3). The web server of affected devices lacks proper bounds checking when parsing the Host parameter in HTTP requests, which could lead to a buffer overflow. An unauthenticated remote attacker could exploit this vulnerability to execute arbitrary code on the device with root privileges.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 9.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 3.37%
- Percentil entre todas las CVEs puntuadas: 88
- 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 (8)
Siemens — Apogee MBC (ppc) (P2 Ethernet) FirmwareSiemens — Apogee MEC (ppc) (P2 Ethernet) FirmwareSiemens — Apogee PXC Bacnet Automation Controller FirmwareSiemens — Apogee PXC Compact (P2 Ethernet) FirmwareSiemens — Apogee PXC Modular (bacnet) FirmwareSiemens — Apogee PXC Modular (P2 Ethernet) FirmwareSiemens — Talon TC Compact (bacnet) FirmwareSiemens — Talon TC Modular (bacnet) Firmware
CWE
- CWE-120
Referencias
JSON original (NVD)
Mostrar
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