CVE-2021-33716

lowPriorität · verfolgen · 26OT-Risiko · erhöhtEPSS 0.003 · 17. PerzentilDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.25% (17th) EPSS

CVSS 3.3 · low

Is it mine?

10 products

Prüfe deine Angriffsfläche

Who says so?

5 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · bewertet 2026-10-27

A vulnerability has been identified in SIMATIC CP 1543-1 (incl. SIPLUS variants) (All versions < V3.0), SIMATIC CP 1545-1 (All versions < V1.1). An attacker with access to the subnet of the affected device could retrieve sensitive information stored in cleartext.

Behebungen

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

Ein Hersteller-Fix ist verfügbar.

BehobenSIMATIC CP 1543-1 (incl. SIPLUS variants)siemens_psirt
After migrating the project successfully, compilation and download to the device is required.
https://support.industry.siemens.com/cs/ww/en/view/109800773/
BehobenSIMATIC CP 1545-1siemens_psirt
Update to V1.1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109811116/
BehobenSIMATIC CP 1543-1 (incl. SIPLUS variants)cisa_csaf_ot
After migrating the project successfully, compilation and download to the device is required.
https://support.industry.siemens.com/cs/ww/en/view/109800773/
BehobenSIMATIC CP 1545-1cisa_csaf_ot
Update to V1.1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109811116/

cvss

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

6.5

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · low–medium · 3.3–6.5

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

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 3.6

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:Csecondary · CISA US

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.16mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-312USprimärCWE-312USCWE-312US

betroffene Produkte (10)

Betroffene Produkte und Versionsbereiche.

SIMATIC CP 1543-1 (incl. SIPLUS variants)alle Versionencisa_csaf_otUS
SIMATIC CP 1545-1alle Versionencisa_csaf_otUS
Siemens SIMATIC CP 1543-1 (incl. SIPLUS variants)< V3.0cisa_csaf_otUS
Siemens SIMATIC CP 1545-1< V1.1cisa_csaf_otUS
Siemens SIMATIC CP 1543-1 (incl. SIPLUS variants)All versions → V3.0enisa_euvdEU
Siemens SIMATIC CP 1545-1All versions → V1.1enisa_euvdEU
siemens simatic cp 1543-1 firmware< 3.0nvdUScpe:2.3:o:siemens:simatic_cp_1543-1_firmware:*:*:*:*:*:*:*:*
siemens simatic cp 1545-1 firmware< 1.1nvdUScpe:2.3:o:siemens:simatic_cp_1545-1_firmware:*:*:*:*:*:*:*:*
Siemens SIMATIC CP 1543-1 (incl. SIPLUS variants)< V3.0siemens_psirtDE
Siemens SIMATIC CP 1545-1< V1.1siemens_psirtDE

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

SSA-535997SSA-535997: Cleartext Storage of Sensitive Information in Multiple SIMATIC Products2021-09-14csaf · siemens_psirtDE
A cleartext vulnerability was found in the SIMATIC communication processors CP 1543-1 and CP 1545-1 that could allow an attacker to read sensitive information. Siemens has released updates for the affected products and recommends to update to the latest versions.
ICSA-21-257-06Siemens SIMATIC CP (Update A)2021-09-14icsa · cisa_csaf_otUS
A cleartext vulnerability was found in the SIMATIC communication processors CP 1543-1 and CP 1545-1 that could allow an attacker to read sensitive information. 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 nvd siemens_psirt NVD CVE.org MITRE

veröffentlicht 2021-09-14geändert 2026-06-17

verwandt (1,243)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2023-22894US	medium4.9OT kritisch	4.11% (91st)	KEV	2023-04-19
Strapi through 4.5.5 allows attackers (with access to the admin panel) to discover sensitive user details by exploiting the query filter. The attacker can filter users by columns t…
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-2011-4723US	medium6.8OT kritisch	3.06% (88th)	KEV	2011-12-20
The D-Link DIR-300 router stores cleartext passwords, which allows context-dependent attackers to obtain sensitive information via unspecified vectors.
CVE-2023-50719US	high7.5OT hoch	83.5% (100th)	—	2023-12-15
XWiki Platform is a generic wiki platform. Starting in 7.2-milestone-2 and prior to versions 14.10.15, 15.5.2, and 15.7-rc-1, the Solr-based search in XWiki discloses the password…
CVE-2022-26148US	critical9.8OT hoch	52.5% (99th)	—	2022-03-21
An issue was discovered in Grafana through 7.3.4, when integrated with Zabbix. The Zabbix password can be found in the api_jsonrpc.php HTML source code. When the user logs in and a…

+1238 weitere

Referenzen (8)

Externe Belege — Patches, Meldungen, Analysen.

scry

Angreifer nutzen Schwachstellen wie diese gegen im Internet exponierte Dienste aus. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.

Kostenloser Scan