CVE-2021-20826

lowPriorität · verfolgen · 30EPSS 0.004 · 34. PerzentilEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.40% (34th) EPSS

CVSS 3.3 · low

Is it mine?

24 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · bewertet 2026-10-27

Unprotected transport of credentials vulnerability in IDEC PLCs (FC6A Series MICROSmart All-in-One CPU module v2.32 and earlier, FC6A Series MICROSmart Plus CPU module v1.91 and earlier, WindLDR v8.19.1 and earlier, WindEDIT Lite v1.3.1 and earlier, and Data File Manager v2.12.1 and earlier) allows an attacker to obtain the PLC Web server user credentials from the communication between the PLC and the software. As a result, the complete access privileges to the PLC Web server may be obtained, and manipulation of the PLC output and/or suspension of the PLC may be conducted.

Behebungen

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

Ein Hersteller-Fix ist verfügbar.

BehobenData File Managercisa_csaf_ot
WindLDR: v8.20.0 and later
BehobenFC6A MICROSmart All-in-One CPU Modulecisa_csaf_ot
WindLDR: v8.20.0 and later
BehobenFC6A MICROSmart Plus CPU Modulecisa_csaf_ot
WindLDR: v8.20.0 and later
BehobenFC6B MICROSmart All-in-One CPU Modulecisa_csaf_ot
WindLDR: v8.20.0 and later
BehobenFC6B MICROSmart Plus CPU Modulecisa_csaf_ot
WindLDR: v8.20.0 and later
BehobenFT1A Controller SmartAXIS Pro/Litecisa_csaf_ot
WindLDR: v8.20.0 and later
BehobenWindEDITcisa_csaf_ot
WindLDR: v8.20.0 and later
BehobenWindEDIT Litecisa_csaf_ot
WindLDR: v8.20.0 and later
BehobenWindLDRcisa_csaf_ot
WindLDR: v8.20.0 and later
MitigationData File Managercisa_csaf_ot
Data File Manager: v2.13.0 and later
MitigationFC6A MICROSmart All-in-One CPU Modulecisa_csaf_ot
Data File Manager: v2.13.0 and later
MitigationFC6A MICROSmart Plus CPU Modulecisa_csaf_ot
Data File Manager: v2.13.0 and later
MitigationFC6B MICROSmart All-in-One CPU Modulecisa_csaf_ot
Data File Manager: v2.13.0 and later
MitigationFC6B MICROSmart Plus CPU Modulecisa_csaf_ot
Data File Manager: v2.13.0 and later
MitigationFT1A Controller SmartAXIS Pro/Litecisa_csaf_ot
Data File Manager: v2.13.0 and later
MitigationWindEDITcisa_csaf_ot
Data File Manager: v2.13.0 and later
MitigationWindEDIT Litecisa_csaf_ot
Data File Manager: v2.13.0 and later
MitigationWindLDRcisa_csaf_ot
Data File Manager: v2.13.0 and later

cvss

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

7.6

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · low–high · 3.3–7.6

v2.03.3lowAV:A/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USAusnutzbarkeit 6.5 · Auswirkung 2.9

v3.17.6highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:Lprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 4.7

v3.07.6highCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:Lsecondary · CISA US

v3.17highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:Usecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-522USprimärCWE-523US

betroffene Produkte (24)

Betroffene Produkte und Versionsbereiche.

Data File Manager: v2.12.1 and earlieralle Versionencisa_csaf_otUS
FC6A MICROSmart All-in-One CPU Module: v2.32 and earlieralle Versionencisa_csaf_otUS
FC6A MICROSmart Plus CPU Module: v1.91 and earlieralle Versionencisa_csaf_otUS
FC6B MICROSmart All-in-One CPU Module: v2.31 and earlieralle Versionencisa_csaf_otUS
FC6B MICROSmart Plus CPU Module: v2.31 and earlieralle Versionencisa_csaf_otUS
FT1A Controller SmartAXIS Pro/Lite: v2.31 and earlieralle Versionencisa_csaf_otUS
WindEDIT Lite: v1.3.1 and earlieralle Versionencisa_csaf_otUS
WindEDIT: Lite v1.3.1 and earlieralle Versionencisa_csaf_otUS
WindLDR: v8.19.1 and earlieralle Versionencisa_csaf_otUS
IDEC Data File Manager≤ 2.12.1cisa_csaf_otUS
IDEC FC6A MICROSmart All-in-One CPU Module≤ 2.32cisa_csaf_otUS
IDEC FC6A MICROSmart Plus CPU Module≤ 1.91cisa_csaf_otUS
IDEC FC6B MICROSmart All-in-One CPU Module≤ 2.31cisa_csaf_otUS
IDEC FC6B MICROSmart Plus CPU Module≤ 2.31cisa_csaf_otUS
IDEC FT1A Controller SmartAXIS Pro/Lite≤ 2.31cisa_csaf_otUS
IDEC WindEDIT≤ 1.3.1cisa_csaf_otUS
IDEC WindEDIT Lite≤ 1.3.1cisa_csaf_otUS
IDEC WindLDR≤ 8.19.1cisa_csaf_otUS
IDEC Corporation IDEC PLC≤ FC6A Series MICROSmart All-in-One CPU module v2.32 and earlier, FC6A Series MICROSmart Plus CPU module v1.91 and earlier, WindLDR v8.19.1 and earlier, WindEDIT Lite v1.3.1 and earlier, and Data File Manager v2.12.1 and earlierenisa_euvdEU
idec data file manager≤ 2.12.1nvdUScpe:2.3:a:idec:data_file_manager:*:*:*:*:*:*:*:*

20 von 24 angezeigt

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

ICSA-22-006-03IDEC PLCs2022-01-06icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to upload, alter, and/or download the PLC user program. An attacker could also access the PLC web server and hijack the controllers, resulting in the manipulation and/or suspension of the PLC output.

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 2021-12-24geändert 2026-06-17

verwandt (1,721)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2021-40655US	high7.5OT kritisch	86.7% (100th)	KEV	2021-09-24
An informtion disclosure issue exists in D-LINK-DIR-605 B2 Firmware Version : 2.01MT. An attacker can obtain a user name and password by forging a post request to the / getcfg.php…
CVE-2021-30116US	critical9.8OT kritisch	85.7% (100th)	KEV	2021-07-09
Kaseya VSA before 9.5.7 allows credential disclosure, as exploited in the wild in July 2021. By default Kaseya VSA on premise offers a download page where the clients for the insta…
CVE-2021-22681US	critical9.8OT kritisch	63.6% (99th)	KEV	2021-03-03
Rockwell Automation Studio 5000 Logix Designer Versions 21 and later, and RSLogix 5000 Versions 16 through 20 use a key to verify Logix controllers are communicating with Rockwell…
CVE-2020-29583US	critical9.8OT kritisch	90.2% (100th)	KEV	2020-12-22
Firmware version 4.60 of Zyxel USG devices contains an undocumented account (zyfwp) with an unchangeable password. The password for this account can be found in cleartext in the fi…
CVE-2017-9248US	critical9.8OT kritisch	75.1% (100th)	KEV	2017-07-03
Telerik.Web.UI.dll in Progress Telerik UI for ASP.NET AJAX before R2 2017 SP1 and Sitefinity before 10.0.6412.0 does not properly protect Telerik.Web.UI.DialogParametersEncryptionK…

+1716 weitere

Referenzen (12)

Externe Belege — Patches, Meldungen, Analysen.

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