CVE-2021-20613

highPriorität · verfolgen · 31EPSS 0.036 · 89. PerzentilEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

3.60% (89th) EPSS

CVSS 7.8 · high

Is it mine?

10 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · bewertet 2026-10-27

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.

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

BehobenFX3U-ENETcisa_csaf_ot
FX3U-ENET-P502: Firmware Version 1.17 or later
BehobenFX3U-ENET-Lcisa_csaf_ot
FX3U-ENET-P502: Firmware Version 1.17 or later
BehobenFX3U-ENET-P502cisa_csaf_ot
FX3U-ENET-P502: Firmware Version 1.17 or later
MitigationFX3U-ENETcisa_csaf_ot
FX3U-ENET-L: Firmware Version 1.17 or later
MitigationFX3U-ENET-Lcisa_csaf_ot
FX3U-ENET-L: Firmware Version 1.17 or later
MitigationFX3U-ENET-P502cisa_csaf_ot
FX3U-ENET-L: Firmware Version 1.17 or later

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.8

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 6.9–7.8

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 6.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 3.6

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · CISA US

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-665USprimärCWE-665US

betroffene Produkte (10)

Betroffene Produkte und Versionsbereiche.

FX3U-ENET-L: Firmware Version 1.16 and prioralle Versionencisa_csaf_otUS
FX3U-ENET-P502: Firmware Version 1.16 and prioralle Versionencisa_csaf_otUS
FX3U-ENET: Firmware Version 1.16 and prioralle Versionencisa_csaf_otUS
Mitsubishi Electric FX3U-ENET≤ 1.16cisa_csaf_otUS
Mitsubishi Electric FX3U-ENET-L≤ 1.16cisa_csaf_otUS
Mitsubishi Electric FX3U-ENET-P502≤ 1.16cisa_csaf_otUS
n/a MELSEC-F series FX3U-ENET; MELSEC-F series FX3U-ENET-L; MELSEC-F series FX3U-ENET-P502≤ Firmware version 1.16 and priorenisa_euvdEU
mitsubishielectric fx3u-enet firmware≤ 1.16nvdUScpe:2.3:o:mitsubishielectric:fx3u-enet_firmware:*:*:*:*:*:*:*:*
mitsubishielectric fx3u-enet-l firmware≤ 1.16nvdUScpe:2.3:o:mitsubishielectric:fx3u-enet-l_firmware:*:*:*:*:*:*:*:*
mitsubishielectric fx3u-enet-p502 firmware≤ 1.16nvdUScpe:2.3:o:mitsubishielectric:fx3u-enet-p502_firmware:*:*:*:*:*:*:*:*

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

ICSA-22-013-07Mitsubishi Electric MELSEC-F Series2022-01-13icsa · cisa_csaf_otUS
Successful exploitation of this vulnerability may cause a denial-of-service condition in the affected product.

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

veröffentlicht 2022-01-14geändert 2026-06-17

verwandt (659)

Verwandte Einträge.

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+654 weitere

Referenzen (11)

Externe Belege — Patches, Meldungen, Analysen.

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