CVE-2026-56111

CVE-2026-56111 - Marlin M421 境界外書き込み CVE-2026-56111 の概念実証です。これは MESHBEDLEVELING を使用してビルドされた Marlin Firmware の M421 Gコードハンドラにおける境界外書き込みです。 アドバイザリ: https://www.vulncheck.com/advisories/marlin-firmware-out-of-bounds-write-via-m421-g-code-handler 影響を受けるバージョン: Marlin USB用。例: /dev/ttyUSB0 または...

Exploit for CVE-2026-56111

CVE-2026-56111 - Marlin M421 Out-of-bounds Write Proof of con...

EUVD-2026-38797

Marlin Firmware through 2.1.2.7, fixed in commit 1f255d1, when built with MESHBEDLEVELING 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...

CVE-2026-56111

Marlin Firmware through 2.1.2.7, fixed in commit 1f255d1, when built with MESHBEDLEVELING 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...

CVE-2026-56111

Marlin Firmware 2.1.2.7 with MESH_BED_LEVELING enabled is affected. The vulnerability is an out-of-bounds write in the M421 G-code handler that allows an attacker-controlled 32-bit float value to be written past the z_values array bounds by providing crafted X/Y grid indices. This can corrupt adj...

CVE-2026-56111 Marlin Firmware 2.1.2.7 Out-of-Bounds Write via M421 G-code Handler

Marlin Firmware through 2.1.2.7, fixed in commit 1f255d1, when built with MESHBEDLEVELING 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...

CVE-2026-56111 Marlin Firmware 2.1.2.7 Out-of-Bounds Write via M421 G-code Handler

Marlin Firmware through 2.1.2.7, fixed in commit 1f255d1, when built with MESHBEDLEVELING 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...

CVE-2026-56111

Marlin Firmware through 2.1.2.7, fixed in commit 1f255d1, when built with MESHBEDLEVELING 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...

CVE-2026-56111 Marlin Firmware 2.1.2.7 Out-of-Bounds Write via M421 G-code Handler

Marlin Firmware through 2.1.2.7, fixed in commit 1f255d1, when built with MESHBEDLEVELING 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...

PT-2026-51836

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 singl...