CVE-2021-20613
First published: Fri Jan 14 2022(Updated: )
Improper initialization vulnerability in MELSEC-F series FX3U-ENET Firmware version 1.16 and prior, FX3U-ENET-L Firmware version 1.16 and prior and FX3U-ENET-P502 Firmware version 1.16 and prior allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition in communication function of the product by sending specially crafted packets. Control by MELSEC-F series PLC is not affected by this vulnerability, but system reset is required for recovery.
Credit: Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mitsubishielectric Fx3u-enet Firmware | <=1.16 | |
| Mitsubishielectric Fx3u-enet | ||
| Mitsubishielectric Fx3u-enet-l Firmware | <=1.16 | |
| Mitsubishielectric Fx3u-enet-l | ||
| Mitsubishielectric Fx3u-enet-p502 Firmware | <=1.16 | |
| Mitsubishielectric Fx3u-enet-p502 | ||
| Mitsubishi Electric FX3U-ENET: Firmware Version 1.16 and prior | ||
| Mitsubishi Electric FX3U-ENET-L: Firmware Version 1.16 and prior | ||
| Mitsubishi Electric FX3U-ENET-P502: Firmware Version 1.16 and prior |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2021-20613.
What is the severity of CVE-2021-20613?
The severity of CVE-2021-20613 is high with a CVSS score of 7.5.
Which software versions are affected by CVE-2021-20613?
CVE-2021-20613 affects MELSEC-F series FX3U-ENET Firmware version 1.16 and prior, FX3U-ENET-L Firmware version 1.16 and prior, and FX3U-ENET-P502 Firmware version 1.16 and prior.
How can an attacker exploit CVE-2021-20613?
An attacker can exploit CVE-2021-20613 by sending specially crafted packets to the affected device, causing a denial-of-service (DoS) condition in communication functions.
Are there any fixes available for CVE-2021-20613?
Yes, Mitsubishi Electric has released a firmware update to address the vulnerability. Please refer to the vendor's advisory for more information.
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- agent/type
- collector/mitre-cve
- source/MITRE
- agent/severity
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- collector/ics-cert-advisory
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- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- agent/softwarecombine
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- agent/trending
- vendor/mitsubishielectric
- canonical/mitsubishielectric fx3u-enet firmware
- version/mitsubishielectric fx3u-enet firmware/1.16
- canonical/mitsubishielectric fx3u-enet
- canonical/mitsubishielectric fx3u-enet-l firmware
- version/mitsubishielectric fx3u-enet-l firmware/1.16
- canonical/mitsubishielectric fx3u-enet-l
- canonical/mitsubishielectric fx3u-enet-p502 firmware
- version/mitsubishielectric fx3u-enet-p502 firmware/1.16
- canonical/mitsubishielectric fx3u-enet-p502
- vendor/mitsubishi electric
- canonical/mitsubishi electric fx3u-enet: firmware version 1.16 and prior
- canonical/mitsubishi electric fx3u-enet-l: firmware version 1.16 and prior
- canonical/mitsubishi electric fx3u-enet-p502: firmware version 1.16 and prior