CVE-2026-56111
Gravedad CVSS v4.0:
ALTA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
24/06/2026
Última modificación:
14/07/2026
Descripción
*** Pendiente de traducción *** Marlin Firmware through 2.1.2.7, fixed in commit 1f255d1, when built with MESH_BED_LEVELING enabled, contains an out-of-bounds write vulnerability in the M421 G-code handler that allows attackers to corrupt firmware memory by supplying out-of-range X and Y grid indices. Attackers can send a single crafted G-code command via USB serial, network interface, or malicious gcode file to write an attacker-controlled 32-bit float value past the z_values array bounds, corrupting adjacent firmware variables and causing denial of service or firmware state corruption.
Impacto
Puntuación base 4.0
8.30
Gravedad 4.0
ALTA
Puntuación base 3.x
9.10
Gravedad 3.x
CRÍTICA



