CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
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.
Засегнати продукти
- MarlinFirmware Marlin: до 2.1.2.7; 1f255d16ec2d456454fd444494cfb338d62b0fa1
Вид слабост
История
- 24 юни 2026 Публикувано
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-56111
- https://nvd.nist.gov/vuln/detail/CVE-2026-56111
- https://github.com/MarlinFirmware/Marlin/issues/28467
- https://github.com/MarlinFirmware/Marlin/pull/28468
- https://github.com/MarlinFirmware/Marlin/commit/1f255d16ec2d456454fd444494cfb338d62b0fa1
- https://www.vulncheck.com/advisories/marlin-firmware-out-of-bounds-write-via-m421-g-code-handler