CVE-2021-31340

mediumPriorität · verfolgen · 30EPSS 0.010 · 62. PerzentilDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.99% (62nd) EPSS

CVSS 5 · medium

Is it mine?

131 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · siemens_psirt

EPSS · bewertet 2026-10-28

A vulnerability has been identified in SIMATIC RF166C (All versions > V1.1 and < V1.3.2), SIMATIC RF185C (All versions > V1.1 and < V1.3.2), SIMATIC RF186C (All versions > V1.1 and < V1.3.2), SIMATIC RF186CI (All versions > V1.1 and < V1.3.2), SIMATIC RF188C (All versions > V1.1 and < V1.3.2), SIMATIC RF188CI (All versions > V1.1 and < V1.3.2), SIMATIC RF360R (All versions < V2.0), SIMATIC Reader RF610R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF610R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF610R FCC (All versions > V3.0 < V4.0), SIMATIC Reader RF615R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF615R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF615R FCC (All versions > V3.0 < V4.0), SIMATIC Reader RF650R ARIB (All versions > V3.0 < V4.0), SIMATIC Reader RF650R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF650R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF650R FCC (All versions > V3.0 < V4.0), SIMATIC Reader RF680R ARIB (All versions > V3.0 < V4.0), SIMATIC Reader RF680R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF680R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF680R FCC (All versions > V3.0 < V4.0), SIMATIC Reader RF685R ARIB (All versions > V3.0 < V4.0), SIMATIC Reader RF685R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF685R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF685R FCC (All versions > V3.0 < V4.0). Affected devices do not properly handle large numbers of incoming connections. An attacker may leverage this to cause a Denial-of-Service situation.

Behebungen

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

Ein Hersteller-Fix ist verfügbar.

BehobenSIMATIC RF166Csiemens_psirt
Update to V1.3.2
https://support.industry.siemens.com/cs/ww/en/view/109768507
BehobenSIMATIC RF185Csiemens_psirt
Update to V1.3.2
https://support.industry.siemens.com/cs/ww/en/view/109768507
BehobenSIMATIC RF186Csiemens_psirt
Update to V1.3.2
https://support.industry.siemens.com/cs/ww/en/view/109768507
BehobenSIMATIC RF186CIsiemens_psirt
Update to V1.3.2
https://support.industry.siemens.com/cs/ww/en/view/109768507
BehobenSIMATIC RF188Csiemens_psirt
Update to V1.3.2
https://support.industry.siemens.com/cs/ww/en/view/109768507
BehobenSIMATIC RF188CIsiemens_psirt
Update to V1.3.2
https://support.industry.siemens.com/cs/ww/en/view/109768507
BehobenSIMATIC RF360Rsiemens_psirt
Update to V2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808759
BehobenSIMATIC Reader RF610R CMIITsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF610R ETSIsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF610R FCCsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF615R CMIITsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF615R ETSIsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF615R FCCsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF650R ARIBsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF650R CMIITsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF650R ETSIsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF650R FCCsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF680R ARIBsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF680R CMIITsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF680R ETSIsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF680R FCCsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF685R ARIBsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF685R CMIITsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF685R ETSIsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF685R FCCsiemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC RF166Ccisa_csaf_ot
Update to V1.3.2
https://support.industry.siemens.com/cs/ww/en/view/109768507
BehobenSIMATIC RF185Ccisa_csaf_ot
Update to V1.3.2
https://support.industry.siemens.com/cs/ww/en/view/109768507
BehobenSIMATIC RF186Ccisa_csaf_ot
Update to V1.3.2
https://support.industry.siemens.com/cs/ww/en/view/109768507
BehobenSIMATIC RF186CIcisa_csaf_ot
Update to V1.3.2
https://support.industry.siemens.com/cs/ww/en/view/109768507
BehobenSIMATIC RF188Ccisa_csaf_ot
Update to V1.3.2
https://support.industry.siemens.com/cs/ww/en/view/109768507
BehobenSIMATIC RF188CIcisa_csaf_ot
Update to V1.3.2
https://support.industry.siemens.com/cs/ww/en/view/109768507
BehobenSIMATIC RF360Rcisa_csaf_ot
Update to V2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808759
BehobenSIMATIC Reader RF610R CMIITcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF610R ETSIcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF610R FCCcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF615R CMIITcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF615R ETSIcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF615R FCCcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF650R ARIBcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF650R CMIITcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF650R ETSIcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF650R FCCcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF680R ARIBcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF680R CMIITcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF680R ETSIcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF680R FCCcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF685R ARIBcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF685R CMIITcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF685R ETSIcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
BehobenSIMATIC Reader RF685R FCCcisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808361
MitigationSIMATIC RF166Csiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC RF185Csiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC RF186Csiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC RF186CIsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC RF188Csiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC RF188CIsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC RF360Rsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF610R CMIITsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF610R ETSIsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF610R FCCsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF615R CMIITsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF615R ETSIsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF615R FCCsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF650R ARIBsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF650R CMIITsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF650R ETSIsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF650R FCCsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF680R ARIBsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF680R CMIITsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF680R ETSIsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF680R FCCsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF685R ARIBsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF685R CMIITsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF685R ETSIsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF685R FCCsiemens_psirt
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC RF166Ccisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC RF185Ccisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC RF186Ccisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC RF186CIcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC RF188Ccisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC RF188CIcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC RF360Rcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF610R CMIITcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF610R ETSIcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF610R FCCcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF615R CMIITcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF615R ETSIcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF615R FCCcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF650R ARIBcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF650R CMIITcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF650R ETSIcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF650R FCCcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF680R ARIBcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF680R CMIITcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF680R ETSIcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF680R FCCcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF685R ARIBcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF685R CMIITcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF685R ETSIcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices
MitigationSIMATIC Reader RF685R FCCcisa_csaf_ot
Deactivate the OPC-UA feature of affected devices

cvss

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

7.5

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 2.9

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

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · CISA US

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

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-400USprimärCWE-400USCWE-400US

betroffene Produkte (131)

Betroffene Produkte und Versionsbereiche.

SIMATIC RF166Calle Versionencisa_csaf_otUS
SIMATIC RF185Calle Versionencisa_csaf_otUS
SIMATIC RF186Calle Versionencisa_csaf_otUS
SIMATIC RF186CIalle Versionencisa_csaf_otUS
SIMATIC RF188Calle Versionencisa_csaf_otUS
SIMATIC RF188CIalle Versionencisa_csaf_otUS
SIMATIC RF360Ralle Versionencisa_csaf_otUS
SIMATIC Reader RF610R CMIITalle Versionencisa_csaf_otUS
SIMATIC Reader RF610R ETSIalle Versionencisa_csaf_otUS
SIMATIC Reader RF610R FCCalle Versionencisa_csaf_otUS
SIMATIC Reader RF615R CMIITalle Versionencisa_csaf_otUS
SIMATIC Reader RF615R ETSIalle Versionencisa_csaf_otUS
SIMATIC Reader RF615R FCCalle Versionencisa_csaf_otUS
SIMATIC Reader RF650R ARIBalle Versionencisa_csaf_otUS
SIMATIC Reader RF650R CMIITalle Versionencisa_csaf_otUS
SIMATIC Reader RF650R ETSIalle Versionencisa_csaf_otUS
SIMATIC Reader RF650R FCCalle Versionencisa_csaf_otUS
SIMATIC Reader RF680R ARIBalle Versionencisa_csaf_otUS
SIMATIC Reader RF680R CMIITalle Versionencisa_csaf_otUS
SIMATIC Reader RF680R ETSIalle Versionencisa_csaf_otUS

20 von 131 angezeigt

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

SSA-787292SSA-787292: Denial of Service Vulnerability in SIMATIC RFID Readers2021-06-08csaf · siemens_psirtDE
The latest updates for SIMATIC RF products fix a vulnerability that could allow an unauthorized attacker to crash the OPC UA service of the affected devices. Siemens has released updates for the affected products and recommends to update to the latest versions.
ICSA-21-159-13Siemens SIMATIC RFID (Update B)2021-06-08icsa · cisa_csaf_otUS
The latest updates for SIMATIC RF products fix a vulnerability that could allow an unauthorized attacker to crash the OPC UA service of the affected devices. Siemens has released updates for the affected products and recommends to update to the latest versions.

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd cisa_csaf_ot siemens_psirt NVD CVE.org MITRE

veröffentlicht 2021-06-08geändert 2026-06-17

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+9620 weitere

Referenzen (6)

Externe Belege — Patches, Meldungen, Analysen.

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