CVE-2019-10926
lowpriority · track · 22OT risk · elevatedEPSS 0.015 · 75 %ileEURUUSEPSS · scored 2026-10-28
A vulnerability has been identified in SIMATIC MV400 family (All Versions < V7.0.6). Communication with the device is not encrypted. Data transmitted between the device and the user can be obtained by an attacker in a privileged network position. The security vulnerability can be exploited by an attacker in a privileged network position which allows eavesdropping the communication between the affected device and the user. The user must invoke a session. Successful exploitation of the vulnerability compromises confidentiality of the data transmitted.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedSIMATIC MV400 familycisa_csaf_ot
Update to V7.0.6 https://support.industry.siemens.com/cs/ww/en/view/109793481/
- MitigationSIMATIC MV400 familycisa_csaf_ot
By setting the DISA bit, changes to the project by logged-in users can be prevented. Please refer to the Operating Instructions for more details: https://support.industry.siemens.com/cs/ww/en/view/84553392
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.6–5.3
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (7)
Products and version ranges known to be affected.
- siemens simatic mv420 firmwareall versionsnvdUScpe:2.3:o:siemens:simatic_mv420_firmware:*:*:*:*:*:*:*:*
- siemens simatic mv440 firmwareall versionsnvdUScpe:2.3:o:siemens:simatic_mv440_firmware:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- ICSA-19-162-02Siemens SIMATIC Ident MV440 Family (Update A)2019-06-11icsa · cisa_csaf_otUS
As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (12)
External citations — patches, advisories, analysis.
- http://www.siemens.com/cnnvd
- https://cert-portal.siemens.com/productcert/pdf/ssa-816980.pdfcnnvd
- https://ics-cert.us-cert.gov/advisories/ICSA-19-162-02cnnvd
- https://us-cert.cisa.gov/ics/advisories/ICSA-19-162-02cnnvd
- https://vigilance.fr/vulnerability/SIMATIC-Ident-information-disclosure-via-Web-Session-29519cnnvd
- https://www.securityfocus.com/bid/108725cnnvd
- http://www.securityfocus.com/bid/108725enisa_euvd
- https://cert-portal.siemens.com/productcert/pdf/ssa-816980.pdfenisa_euvd
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