CVE-2021-20612

Lack of administrator control over security vulnerability in MELSEC-F series FX3U-ENET Firmware version 1.14 and prior, FX3U-ENET-L Firmware version 1.14 and…

published January 14, 2022

CVSS
—
EPSS
4%
Percentile
89.4
In the wild
Unconfirmed
What it is

Lack of administrator control over security vulnerability 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 denial-of-service (DoS) condition in communication function of the product or other unspecified effects by sending specially crafted packets to an unnecessary opening of TCP port. Control by MELSEC-F series PLC is not affected by this vulnerability, but system reset is required for recovery.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03595 · 89.4th percentile
Published
2022-01-14T19:04Z
EPSS history
Timeline
  • 14 JAN 19:04Z
    Lack of administrator control over security vulnerability in MELSEC-F series FX3U-ENET Firmware version 1.14 and prior, FX3U-ENET-L Firmware version 1.14 and…
    cvelistv5