CVE-2023-3373

criticalpriority · track · 36OT risk · elevatedEPSS 0.010 · 63 %ileEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
1.02% (63rd) EPSS
CVSS 9.1 · critical
Is it mine?
10 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

Predictable Exact Value from Previous Values vulnerability in Mitsubishi Electric Corporation GOT2000 Series GT21 model versions 01.49.000 and prior and GOT SIMPLE Series GS21 model versions 01.49.000 and prior allows a remote unauthenticated attacker to hijack data connections (session hijacking) or prevent legitimate users from establishing data connections (to cause DoS condition) by guessing the listening port of the data connection on FTP server and connecting to it.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • FixedGOT SIMPLE, GS21 modelcisa_csaf_ot

    GOT SIMPLE, GS21 model version 01.50.000 or later

  • FixedGOT2000 Series, GT21 modelcisa_csaf_ot

    GOT2000 Series, GT21 model version 01.50.000 or later

  • MitigationGOT SIMPLE, GS21 modelcisa_csaf_ot

    After writing the required package data to the GOT, refer to the and check that the software has been updated to the fixed versions.

  • MitigationGOT2000 Series, GT21 modelcisa_csaf_ot

    After writing the required package data to the GOT, refer to the and check that the software has been updated to the fixed versions.

02

cvss

Technical severity, 0–10. One row per scoring source.

9.1
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 5.9–9.1

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.2
v3.05.9mediumCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:Lsecondary · CISA US
v3.15.9mediumAV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:Lsecondary · FSTEC (BDU) RU
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:Lsecondary · ENISA EU
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:Lsecondary · Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jpexploitability 1.6 · impact 4.2
v3.18.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-330USprimaryCWE-330USCWE-342USCWE-342USCWE-342US
05

affected products (10)

Products and version ranges known to be affected.

06

advisories (1)

Vendor and ecosystem advisories describing this.

  • ICSA-23-215-01Mitsubishi Electric GOT2000 and GOT SIMPLE2023-08-03icsa · cisa_csaf_otUS

    Successful exploitation of this vulnerability could allow an attacker to hijack data connections or prevent legitimate users from establishing data connections.

07

also known as (5)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducisa_csaf_otnvdNVDCVE.orgMITRE
published 2023-08-04modified 2026-06-17
10

references (12)

External citations — patches, advisories, analysis.

scry

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