High severity · published May 19, 2021
CVE-2021-20589
Buffer access with incorrect length value vulnerability in GOT2000 series GT27 model communication driver versions 01.19.000 through 01.38.000, GT25 model communication driver…
7.5
CVSS
1.5%
EPSS
No
On KEV
Description
Buffer access with incorrect length value vulnerability in GOT2000 series GT27 model communication driver versions 01.19.000 through 01.38.000, GT25 model communication driver versions 01.19.000 through 01.38.000, GT23 model communication driver versions 01.19.000 through 01.38.000 and GT21 model communication driver versions 01.21.000 through 01.39.000, GOT SIMPLE series GS21 model communication driver versions 01.21.000 through 01.39.000, GT SoftGOT2000 versions 1.170C through 1.250L and Tension Controller LE7-40GU-L Screen package data for MODBUS/TCP V1.00 allows a remote unauthenticated attacker to stop the communication function of the products via specially crafted packets.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GS
GOT2000 series; GOT SIMPLE series; GT SoftGOT2000; Tension Controller ·
GT27 model communication driver versions 01.19.000 through 01.38.000, GT25 model communication driver versions 01.19.000 through 01.38.000, GT23 model communication driver versions 01.19.000 through 01.38.000, GT21 model communication driver versions 01.21.000 through 01.39.000; GS21 model communication driver versions 01.21.000 through 01.39.000; GT SoftGOT2000 versions 1.170C through 1.250L; LE7-40GU-L Screen package data for MODBUS/TCP V1.00 · source: vendor
GS
GT Softgot2000 Firmware · Mitsubishi
1.170c through 1.250l · source: NVD
GF
Gs21 Firmware · Mitsubishi
01.21.000 through 01.39.000 · source: NVD
GF
Gt21 Firmware · Mitsubishi
01.21.000 through 01.39.000 · source: NVD
GF
Gt23 Firmware · Mitsubishi
01.19.000 through 01.38.000 · source: NVD
GF
Gt25 Firmware · Mitsubishi
01.19.000 through 01.38.000 · source: NVD
GF
Gt27 Firmware · Mitsubishi
01.19.000 through 01.38.000 · source: NVD
Affected product
GS
GOT2000 series; GOT SIMPLE series; GT SoftGOT2000; Tension Controller