CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2020-5666
Uncontrolled resource consumption vulnerability in MELSEC iQ-R Series CPU Modules (R00/01/02CPU Firmware versions from '05' to '19' and R04/08/16/32/120(EN)CPU Firmware versions from '35' to '51') allows a remote attacker to cause an error in a CPU unit via a specially crafted HTTP packet, which may lead to a denial-of-service (DoS) condition in execution of the program and its communication.
Severity
- EPSS
- 8.8% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-10-31)
- CWE
- CWE-400
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mitsubishielectric:melsec_iq-r00_firmware
- mitsubishielectric:melsec_iq-r01_firmware
- mitsubishielectric:melsec_iq-r02_firmware
- mitsubishielectric:melsec_iq-r04_firmware
- mitsubishielectric:melsec_iq-r08_firmware
- mitsubishielectric:melsec_iq-r120_firmware
- mitsubishielectric:melsec_iq-r16_firmware
- mitsubishielectric:melsec_iq-r32_firmware