CVE-2021-40142

mediumPriorität · verfolgen · 31EPSS 0.026 · 85. PerzentilDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.56% (85th) EPSS

CVSS 5 · medium

Is it mine?

52 products

Prüfe deine Angriffsfläche

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · bewertet 2026-10-27

In OPC Foundation Local Discovery Server (LDS) before 1.04.402.463, remote attackers can cause a denial of service (DoS) by sending carefully crafted messages that lead to Access of a Memory Location After the End of a Buffer.

Behebungen

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

Ein Hersteller-Fix ist verfügbar.

BehobenSIMATIC NET PC Software V14siemens_psirt
Update to V14 SP1 Update 14 or later version
https://support.industry.siemens.com/cs/ww/en/view/109807351/
BehobenSIMATIC NET PC Software V16siemens_psirt
Update to V16 Update 6 or later version
BehobenSIMATIC NET PC Software V17siemens_psirt
Update to V17 SP1 or later version
BehobenSIMATIC Process Historian OPC UA Serversiemens_psirt
For PCS 7: Update to PCS 7 V9.1 SP1 ( https://support.industry.siemens.com/cs/ww/en/view/109805073/)
BehobenSIMATIC WinCCsiemens_psirt
Update to V8.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109816599/
BehobenSIMATIC WinCC Runtime Professionalsiemens_psirt
Update to V18 or later version
https://support.industry.siemens.com/cs/ww/en/view/109813587/
BehobenSIMATIC WinCC Unified PC Runtime V18siemens_psirt
Update to V18 Update 1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109807123/
BehobenTeleControl Server Basic V3siemens_psirt
Update to V3.1.1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109812231/
BehobenSIMATIC NET PC Software V14cisa_csaf_ot
Update to V14 SP1 Update 14 or later version
https://support.industry.siemens.com/cs/ww/en/view/109807351/
BehobenSIMATIC NET PC Software V16cisa_csaf_ot
Update to V16 Update 6 or later version
BehobenSIMATIC NET PC Software V17cisa_csaf_ot
Update to V17 SP1 or later version
BehobenSIMATIC Process Historian OPC UA Servercisa_csaf_ot
For PCS 7: Update to PCS 7 V9.1 SP1 ( https://support.industry.siemens.com/cs/ww/en/view/109805073/)
BehobenSIMATIC WinCCcisa_csaf_ot
Update to V8.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109816599/
BehobenSIMATIC WinCC Runtime Professionalcisa_csaf_ot
Update to V18 or later version
https://support.industry.siemens.com/cs/ww/en/view/109813587/
BehobenSIMATIC WinCC Unified PC Runtime V18cisa_csaf_ot
Update to V18 Update 1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109807123/
BehobenTeleControl Server Basic V3cisa_csaf_ot
Update to V3.1.1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109812231/
MitigationOpenPCS 7 V9.1siemens_psirt
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationSIMATIC NET PC Software V14siemens_psirt
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationSIMATIC NET PC Software V15siemens_psirt
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationSIMATIC NET PC Software V16siemens_psirt
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationSIMATIC NET PC Software V17siemens_psirt
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationSIMATIC Process Historian OPC UA Serversiemens_psirt
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationSIMATIC WinCCsiemens_psirt
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationSIMATIC WinCC Runtime Professionalsiemens_psirt
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationSIMATIC WinCC Unified PC Runtime V18siemens_psirt
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationTeleControl Server Basic V3siemens_psirt
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationOpenPCS 7 V9.1cisa_csaf_ot
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationSIMATIC NET PC Software V14cisa_csaf_ot
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationSIMATIC NET PC Software V15cisa_csaf_ot
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationSIMATIC NET PC Software V16cisa_csaf_ot
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationSIMATIC NET PC Software V17cisa_csaf_ot
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationSIMATIC Process Historian OPC UA Servercisa_csaf_ot
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationSIMATIC WinCCcisa_csaf_ot
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationSIMATIC WinCC Runtime Professionalcisa_csaf_ot
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationSIMATIC WinCC Unified PC Runtime V18cisa_csaf_ot
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
MitigationTeleControl Server Basic V3cisa_csaf_ot
Deactivate the OPC LDS Service if supported by the product use case. The LDS service is not activated in the default configuration
Kein Fix geplantOpenPCS 7 V9.1siemens_psirt
Currently no fix is planned
Kein Fix geplantSIMATIC NET PC Software V15siemens_psirt
Currently no fix is planned
Kein Fix geplantOpenPCS 7 V9.1cisa_csaf_ot
Currently no fix is planned
Kein Fix geplantSIMATIC NET PC Software V15cisa_csaf_ot
Currently no fix is planned

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

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:Nsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · cve@mitre.org 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 · 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-119USprimärCWE-119USCWE-119USCWE-119USCWE-120USCWE-788US

betroffene Produkte (52)

Betroffene Produkte und Versionsbereiche.

OpenPCS 7 V9.1alle Versionencisa_csaf_otUS
SIMATIC NET PC Software V14alle Versionencisa_csaf_otUS
SIMATIC NET PC Software V15alle Versionencisa_csaf_otUS
SIMATIC NET PC Software V16alle Versionencisa_csaf_otUS
SIMATIC NET PC Software V17alle Versionencisa_csaf_otUS
SIMATIC Process Historian OPC UA Serveralle Versionencisa_csaf_otUS
SIMATIC WinCCalle Versionencisa_csaf_otUS
SIMATIC WinCC Runtime Professionalalle Versionencisa_csaf_otUS
SIMATIC WinCC Unified PC Runtime V18alle Versionencisa_csaf_otUS
TeleControl Server Basic V3alle Versionencisa_csaf_otUS
Siemens OpenPCS 7 V9.1≤ vers:all/*cisa_csaf_otUS
Siemens SIMATIC NET PC Software V14< V14_SP1_Update_14cisa_csaf_otUS
Siemens SIMATIC NET PC Software V15≤ vers:all/*cisa_csaf_otUS
Siemens SIMATIC NET PC Software V16< V16_Update_6cisa_csaf_otUS
Siemens SIMATIC NET PC Software V17< V17_SP1cisa_csaf_otUS
Siemens SIMATIC Process Historian OPC UA Server< V2020_SP1cisa_csaf_otUS
Siemens SIMATIC WinCC< V8.0cisa_csaf_otUS
Siemens SIMATIC WinCC Runtime Professional< V18cisa_csaf_otUS
Siemens SIMATIC WinCC Unified PC Runtime V18< V18_Update_1cisa_csaf_otUS
Siemens TeleControl Server Basic V3< V3.1.1cisa_csaf_otUS

20 von 52 angezeigt

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

SSA-321292SSA-321292: Denial of Service in the OPC Foundation Local Discovery Server (LDS) in Industrial Products2022-05-10csaf · siemens_psirtDE
A vulnerability has been identified in the OPC Foundation Local Discovery Server (LDS) [0] of several industrial products. The vulnerability could cause a denial of service condition on the service or the device. Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where fixes are not, or not yet available. [0] https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-40142.pdf
ICSA-22-132-12Siemens Industrial Products2022-05-10icsa · cisa_csaf_otUS
A vulnerability has been identified in the OPC Foundation Local Discovery Server (LDS) [0] of several industrial products. The vulnerability could cause a denial of service condition on the service or the device. Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where fixes are not, or not yet available. [0] https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-40142.pdf

auch bekannt als (5)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot siemens_psirt NVD CVE.org MITRE

veröffentlicht 2021-08-27geändert 2026-06-17

verwandt (21,028)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2026-88779US	high7.5OT kritisch	11.4% (96th)	KEV	2026-10-04
Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, and before 13.1-37.282; Gateway: before…
CVE-2026-88772US	high8.1OT kritisch	78.2% (100th)	KEV	2026-09-27
Vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FI…
CVE-2026-8452US	critical9.8OT kritisch	1.01% (63rd)	KEV	2026-06-30
Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (…
CVE-2026-53266US	—OT kritisch	0.93% (61st)	KEV	2026-06-25
In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: make ebt_snat ARP rewrite writable The ebtables SNAT target keeps the Ethernet source addre…
CVE-2026-3910US	high8.8OT kritisch	2.69% (86th)	KEV	2026-03-13
Inappropriate implementation in V8 in Google Chrome prior to 146.0.7680.75 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium s…

+21023 weitere

Referenzen (13)

Externe Belege — Patches, Meldungen, Analysen.

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