CVE-2019-10931 — A vulnerability has been identified in All other SIPROTEC 5 device types with CP

A vulnerability has been identified in All other SIPROTEC 5 device types with CPU variants CP300 and CP100 and the respective Ethernet communication modules (All versions ), DIGSI 5 engineering software (All versions < V7.90), SIPROTEC 5 device types 6MD85, 6MD86, 6MD89, 7UM85

01What is this vulnerability?

A vulnerability has been identified in All other SIPROTEC 5 device types with CPU variants CP300 and CP100 and the respective Ethernet communication modules (All versions ), DIGSI 5 engineering software (All versions < V7.90), SIPROTEC 5 device types 6MD85, 6MD86, 6MD89, 7UM85, 7SA87, 7SD87, 7SL87, 7VK87, 7SA82, 7SA86, 7SD82, 7SD86, 7SL82, 7SL86, 7SJ86, 7SK82, 7SK85, 7SJ82, 7SJ85, 7UT82, 7UT85…

02Affected products

Vendor	Product	Versions
Siemens AG	All other SIPROTEC 5 device types with CPU variants CP300 and CP100 and the respective Ethernet communication modules	All versions
Siemens AG	DIGSI 5 engineering software	All versions < V7.90
Siemens AG	SIPROTEC 5 device types 6MD85, 6MD86, 6MD89, 7UM85, 7SA87, 7SD87, 7SL87, 7VK87, 7SA82, 7SA86, 7SD82, 7SD86, 7SL82, 7SL86, 7SJ86, 7SK82, 7SK85, 7SJ82, 7SJ85, 7UT82, 7UT85, 7UT86, 7UT87 and 7VE85 with CPU variants CP300 and CP100 and the respective Ethernet communication modules	All versions < V7.90
Siemens AG	SIPROTEC 5 device types 7SS85 and 7KE85	All versions < V8.01
Siemens AG	SIPROTEC 5 device types with CPU variants CP200 and the respective Ethernet communication modules	All versions < V7.59
Siemens AG	SIPROTEC 5 relays with CPU variants CP200 and the respective Ethernet communication modules	All versions < V7.59

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-07-11T21:17:47.000Z
• Last modified: 2024-08-04T22:40:15.283Z

09References

• cert-portal.siemens.com — https://cert-portal.siemens.com/productcert/pdf/ssa-899560.pdf