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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-20596 Detail

Description

NULL Pointer Dereference in MELSEC-F Series FX3U-ENET firmware version 1.14 and prior, FX3U-ENET-L firmware version 1.14 and prior and FX3U-ENET-P502 firmware version 1.14 and prior allows a remote unauthenticated attacker to cause a DoS condition in communication by sending specially crafted packets. Control by MELSEC-F series PLC is not affected and system reset is required for recovery.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://jvn.jp/vu/JVNVU94348759/index.html Patch  Third Party Advisory 
https://jvn.jp/vu/JVNVU94348759/index.html Patch  Third Party Advisory 
https://us-cert.cisa.gov/ics/advisories/icsa-21-201-01 Third Party Advisory 
https://us-cert.cisa.gov/ics/advisories/icsa-21-201-01 Third Party Advisory 
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-006_en.pdf Patch  Vendor Advisory 
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-006_en.pdf Patch  Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-476 NULL Pointer Dereference cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-20596
NVD Published Date:
07/22/2021
NVD Last Modified:
11/21/2024
Source:
Mitsubishi Electric Corporation