CVE-2023-3346

CRITICAL

MITSUBSHI CNC Series - Buffer Overflow

Title source: llm
STIX 2.1

Description

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in MITSUBSHI CNC Series allows a remote unauthenticated attacker to cause Denial of Service (DoS) condition and execute arbitrary code on the product by sending specially crafted packets. In addition, system reset is required for recovery.

References (3)

Core 3
Core References
Third Party Advisory government-resource
https://jvn.jp/vu/JVNVU90352157/index.html
Third Party Advisory, US Government Resource government-resource
https://www.cisa.gov/news-events/ics-advisories/icsa-23-208-03

Scores

CVSS v3 9.8
EPSS 0.0138
EPSS Percentile 80.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-120
Status published
Products (21)
mitsubishielectric/c80_firmware
mitsubishielectric/e70_firmware
mitsubishielectric/e80_firmware
mitsubishielectric/m70v_firmware
mitsubishielectric/m720vs_15-type_firmware
mitsubishielectric/m720vs_firmware
mitsubishielectric/m720vw_firmware
mitsubishielectric/m730vs_15-type_firmware
mitsubishielectric/m730vs_firmware
mitsubishielectric/m730vw_firmware
... and 11 more
Published Aug 03, 2023
Tracked Since Feb 18, 2026