CVE-2020-15783

highPriorität · verfolgen · 31EPSS 0.017 · 77. PerzentilDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.67% (77th) EPSS

CVSS 7.8 · high

Is it mine?

24 products

Prüfe deine Angriffsfläche

Who says so?

5 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · bewertet 2026-10-26

A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC TDC CPU555 (All versions), SINUMERIK 840D sl (All versions). Sending multiple specially crafted packets to the affected devices could cause a Denial-of-Service on port 102. A cold restart is required to recover the service.

Behebungen

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

Noch kein Hersteller-Fix; eine Mitigation ist verfügbar.

MitigationSIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)siemens_psirt
Protect network access to port 102/tcp of affected devices.
MitigationSIMATIC TDC CPU555siemens_psirt
Protect network access to port 102/tcp of affected devices.
MitigationSINUMERIK 840D slsiemens_psirt
Protect network access to port 102/tcp of affected devices.
MitigationSIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)cisa_csaf_ot
Protect network access to port 102/tcp of affected devices.
MitigationSIMATIC TDC CPU555cisa_csaf_ot
Protect network access to port 102/tcp of affected devices.
MitigationSINUMERIK 840D slcisa_csaf_ot
Protect network access to port 102/tcp of affected devices.
Kein Fix geplantSIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)siemens_psirt
Currently no fix is planned
Kein Fix geplantSIMATIC TDC CPU555siemens_psirt
Currently no fix is planned
Kein Fix geplantSINUMERIK 840D slsiemens_psirt
Currently no fix is planned
Kein Fix geplantSIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)cisa_csaf_ot
Currently no fix is planned
Kein Fix geplantSIMATIC TDC CPU555cisa_csaf_ot
Currently no fix is planned
Kein Fix geplantSINUMERIK 840D slcisa_csaf_ot
Currently no fix is planned

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 · 5.9–7.8

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

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:U/RC:Csecondary · CISA US

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

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

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:U/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)

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-400USCWE-400USCWE-400US

betroffene Produkte (24)

Betroffene Produkte und Versionsbereiche.

SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)alle Versionencisa_csaf_otUS
SIMATIC TDC CPU555alle Versionencisa_csaf_otUS
SINUMERIK 840D slalle Versionencisa_csaf_otUS
Siemens SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)≤ vers:all/*cisa_csaf_otUS
Siemens SIMATIC TDC CPU555≤ vers:all/*cisa_csaf_otUS
Siemens SINUMERIK 840D sl≤ vers:all/*cisa_csaf_otUS
Siemens SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)≤ All versionsenisa_euvdEU
Siemens SIMATIC TDC CPU555≤ All versionsenisa_euvdEU
Siemens SINUMERIK 840D sl≤ All versionsenisa_euvdEU
siemens simatic s7-300 cpu 312 firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_312_firmware:*:*:*:*:*:*:*:*
siemens simatic s7-300 cpu 314 firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_314_firmware:*:*:*:*:*:*:*:*
siemens simatic s7-300 cpu 315-2 dp firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_315-2_dp_firmware:*:*:*:*:*:*:*:*
siemens simatic s7-300 cpu 315-2 pn firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_315-2_pn_firmware:*:*:*:*:*:*:*:*
siemens simatic s7-300 cpu 315f-2 dp firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_315f-2_dp_firmware:*:*:*:*:*:*:*:*
siemens simatic s7-300 cpu 315f-2 pn firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_315f-2_pn_firmware:*:*:*:*:*:*:*:*
siemens simatic s7-300 cpu 317-2 dp firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_317-2_dp_firmware:*:*:*:*:*:*:*:*
siemens simatic s7-300 cpu 317-2 pn firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_317-2_pn_firmware:*:*:*:*:*:*:*:*
siemens simatic s7-300 cpu 317f-2 dp firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_317f-2_dp_firmware:*:*:*:*:*:*:*:*
siemens simatic s7-300 cpu 317f-2 pn firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_317f-2_pn_firmware:*:*:*:*:*:*:*:*
siemens simatic tdc cpu555 firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_tdc_cpu555_firmware:*:*:*:*:*:*:*:*

20 von 24 angezeigt

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

SSA-492828SSA-492828: Denial-of-Service Vulnerability in SIMATIC S7-300 CPUs and SINUMERIK Controller2020-11-10csaf · siemens_psirtDE
A vulnerability in S7-300 might allow an attacker to cause a Denial- of-Service condition on port 102 of the affected devices by sending specially crafted packets. Siemens recommends specific countermeasures for products where updates are not, or not yet available.
ICSA-20-315-04Siemens SIMATIC S7-300 CPUs and SINUMERIK Controller (Update A)2020-11-10icsa · cisa_csaf_otUS
A vulnerability in S7-300 might allow an attacker to cause a Denial- of-Service condition on port 102 of the affected devices by sending specially crafted packets. Siemens recommends specific countermeasures for products where updates are not, or not yet available.

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 2020-11-12geändert 2026-06-17

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