CVE-2023-51440

highPriorität · verfolgen · 30EPSS 0.006 · 48. PerzentilDEEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.60% (48th) EPSS
CVSS 7.5 · high
Is it mine?
28 products
Prüfe deine Angriffsfläche
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · bewertet 2026-10-27

A vulnerability has been identified in SIMATIC CP 343-1 (6GK7343-1EX30-0XE0) (All versions), SIMATIC CP 343-1 Lean (6GK7343-1CX10-0XE0) (All versions), SIPLUS NET CP 343-1 (6AG1343-1EX30-7XE0) (All versions), SIPLUS NET CP 343-1 Lean (6AG1343-1CX10-2XE0) (All versions). Affected products incorrectly validate TCP sequence numbers. This could allow an unauthenticated remote attacker to create a denial of service condition by injecting spoofed TCP RST packets.

01

Behebungen

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

Noch kein Hersteller-Fix; ein Workaround ist verfügbar.

  • WorkaroundSIMATIC CP 343-1 (6GK7343-1EX30-0XE0)siemens_psirt

    Apply network segmentation and Defense-in-Depth practices to reduce likelihood of a threat actor to be able to reach a potentially vulnerable device

  • WorkaroundSIMATIC CP 343-1 Lean (6GK7343-1CX10-0XE0)siemens_psirt

    Apply network segmentation and Defense-in-Depth practices to reduce likelihood of a threat actor to be able to reach a potentially vulnerable device

  • WorkaroundSIPLUS NET CP 343-1 (6AG1343-1EX30-7XE0)siemens_psirt

    Apply network segmentation and Defense-in-Depth practices to reduce likelihood of a threat actor to be able to reach a potentially vulnerable device

  • WorkaroundSIPLUS NET CP 343-1 Lean (6AG1343-1CX10-2XE0)siemens_psirt

    Apply network segmentation and Defense-in-Depth practices to reduce likelihood of a threat actor to be able to reach a potentially vulnerable device

  • WorkaroundSIMATIC CP 343-1 (6GK7343-1EX30-0XE0)cisa_csaf_ot

    Apply network segmentation and Defense-in-Depth practices to reduce likelihood of a threat actor to be able to reach a potentially vulnerable device

  • WorkaroundSIMATIC CP 343-1 Lean (6GK7343-1CX10-0XE0)cisa_csaf_ot

    Apply network segmentation and Defense-in-Depth practices to reduce likelihood of a threat actor to be able to reach a potentially vulnerable device

  • WorkaroundSIPLUS NET CP 343-1 (6AG1343-1EX30-7XE0)cisa_csaf_ot

    Apply network segmentation and Defense-in-Depth practices to reduce likelihood of a threat actor to be able to reach a potentially vulnerable device

  • WorkaroundSIPLUS NET CP 343-1 Lean (6AG1343-1CX10-2XE0)cisa_csaf_ot

    Apply network segmentation and Defense-in-Depth practices to reduce likelihood of a threat actor to be able to reach a potentially vulnerable device

  • Kein Fix geplantSIMATIC CP 343-1 (6GK7343-1EX30-0XE0)siemens_psirt

    Currently no fix is planned

  • Kein Fix geplantSIMATIC CP 343-1 Lean (6GK7343-1CX10-0XE0)siemens_psirt

    Currently no fix is planned

  • Kein Fix geplantSIPLUS NET CP 343-1 (6AG1343-1EX30-7XE0)siemens_psirt

    Currently no fix is planned

  • Kein Fix geplantSIPLUS NET CP 343-1 Lean (6AG1343-1CX10-2XE0)siemens_psirt

    Currently no fix is planned

  • Kein Fix geplantSIMATIC CP 343-1 (6GK7343-1EX30-0XE0)cisa_csaf_ot

    Currently no fix is planned

  • Kein Fix geplantSIMATIC CP 343-1 Lean (6GK7343-1CX10-0XE0)cisa_csaf_ot

    Currently no fix is planned

  • Kein Fix geplantSIPLUS NET CP 343-1 (6AG1343-1EX30-7XE0)cisa_csaf_ot

    Currently no fix is planned

  • Kein Fix geplantSIPLUS NET CP 343-1 Lean (6AG1343-1CX10-2XE0)cisa_csaf_ot

    Currently no fix is planned

02

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 · 6.9–7.5

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:T/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/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:T/RC:Csecondary · ENISA EU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · productcert@siemens.com DEAusnutzbarkeit 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:T/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)
03

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Trackcoordinatorcisa_ssvcUS
04

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-940USCWE-940USCWE-940USCWE-940US
05

betroffene Produkte (28)

Betroffene Produkte und Versionsbereiche.

20 von 28 angezeigt
06

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

  • SSA-516818SSA-516818: TCP Sequence Number Validation Vulnerability in the TCP/IP Stack of CP343-1 Devices2024-02-13csaf · siemens_psirtDE

    Affected products incorrectly validate TCP sequence numbers. This could allow an unauthenticated remote attacker to create a denial of service condition by injecting spoofed TCP RST packets. Siemens recommends countermeasures for products where fixes are not, or not yet available.

  • ICSA-24-046-04Siemens CP343-1 Devices2024-02-13icsa · cisa_csaf_otUS

    Affected products incorrectly validate TCP sequence numbers. This could allow an unauthenticated remote attacker to create a denial of service condition by injecting spoofed TCP RST packets. Siemens recommends countermeasures for products where fixes are not, or not yet available.

07

auch bekannt als (5)

Weitere Namen und Kennungen dieser Entität.

08

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvdenisa_euvdfstec_bducisa_csaf_otsiemens_psirtNVDCVE.orgMITRE
veröffentlicht 2024-02-13geändert 2026-06-17
09

Referenzen (4)

Externe Belege — Patches, Meldungen, Analysen.

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