CVE-2019-10937

mediumpriority · track · 30EPSS 0.013 · 70 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.28% (70th) EPSS

CVSS 5 · medium

Is it mine?

5 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-25

A vulnerability has been identified in SIMATIC TDC CP51M1 (All versions < V1.1.7). An attacker with network access to the device could cause a Denial-of-Service condition by sending a specially crafted UDP packet. The vulnerability affects the UDP communication of the device. The security vulnerability could be exploited without authentication. No user interaction is required to exploit this security vulnerability. Successful exploitation of the security vulnerability compromises availability of the targeted system. At the time of advisory publication no public exploitation of this security vulnerability was known.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedSIMATIC TDC CP51M1cisa_csaf_ot
Update to V1.1.7 - Download: https://support.industry.siemens.com/cs/ww/en/view/27049282
https://support.industry.siemens.com/cs/ww/en/view/27049282
MitigationSIMATIC TDC CP51M1cisa_csaf_ot
Siemens has identified the following specific workarounds and mitigations thatcustomers can apply to reduce the risk: Apply cell protection concept and implement defense in depth

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 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 USexploitability 3.9 · impact 3.6

v3.07.5highCVSS:3.0/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

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20USCWE-20US

affected products (5)

Products and version ranges known to be affected.

SIMATIC TDC CP51M1all versionscisa_csaf_otUS
Siemens SIMATIC TDC CP51M1< V1.1.7cisa_csaf_otUS
Siemens AG SIMATIC TDC CP51M1All versions → V1.1.7enisa_euvdEU
Siemens AG SIMATIC TDC CP51M1≤ 1.1.7fstec_bduRU
siemens simatic tdc cp51m1 firmware< 1.1.7nvdUScpe:2.3:o:siemens:simatic_tdc_cp51m1_firmware:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-19-253-05ICSA-19-253-05 Siemens SIMATIC TDC CP51M12019-09-10icsa · cisa_csaf_otUS
CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot nvd NVD CVE.org MITRE

published 2019-09-13modified 2026-06-17

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references (10)

External citations — patches, advisories, analysis.

scry

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