CVE-2019-10929: A vulnerability has been identified in SIMATIC CP 1626 (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All ver...

Description

A vulnerability has been identified in SIMATIC CP 1626 (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V20.8), SIMATIC HMI Panel (incl. SIPLUS variants) (All versions), SIMATIC NET PC Software V14 (All versions < V14 SP1 Update 14), SIMATIC NET PC Software V15 (All versions), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.4.0), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V2.8.1), SIMATIC S7-1500 Software Controller (All versions < V20.8), SIMATIC S7-PLCSIM Advanced (All versions < V3.0), SIMATIC STEP 7 (TIA Portal) (All versions < V16), SIMATIC WinCC (TIA Portal) (All versions < V16), SIMATIC WinCC OA (All versions < V3.16 P013), SIMATIC WinCC Runtime Advanced (All versions < V16), SIMATIC WinCC Runtime Professional (All versions < V16), TIM 1531 IRC (incl. SIPLUS NET variants) (All versions < V2.1). Affected devices contain a message protection bypass vulnerability due to certain properties in the calculation used for integrity protection. This could allow an attacker in a Man-in-the-Middle position to modify network traffic sent on port 102/tcp to the affected devices.

Metrics

CVSS 3.1

5.9/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

0.98%

57.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-327

Affected Software

Vendor	Product	Versions
Siemens	Simatic Et 200sp Open Controller Cpu 1515sp Pc Firmware	All versions
Siemens	Simatic Et 200sp Open Controller Cpu 1515sp Pc2 Firmware	All versions
Siemens	Simatic S7-1200 Cpu 1211c Firmware	<= 4.0
Siemens	Simatic S7-1200 Cpu 1212c Firmware	<= 4.0
Siemens	Simatic S7-1200 Cpu 1214c Firmware	<= 4.0
Siemens	Simatic S7-1200 Cpu 1215c Firmware	<= 4.0
Siemens	Simatic S7-1200 Cpu 1217c Firmware	<= 4.0
Siemens	Simatic S7-1500 Cpu 1518 Firmware	All versions
Siemens	Simatic S7-1500 Cpu 1511c Firmware	All versions
Siemens	Simatic S7-1500 Cpu 1512c Firmware	All versions
Siemens	Simatic Net Pc	< 16
Siemens	Simatic S7-1500	All versions
Siemens	Simatic S7-Plcsim Advanced	All versions
Siemens	Simatic Step 7	< 16
Siemens	Simatic Wincc	< 16
Siemens	Simatic Wincc Open Architecture	<= 3.15
Siemens	Simatic Wincc Open Architecture	3.16
Siemens	Simatic Wincc Runtime	All versions
Siemens	Simatic Cp 1626 Firmware	All versions
Siemens	Simatic Tim 1531 Irc Firmware	< 2.1
Siemens	Simatic Hmi Panel Firmware	All versions

References

https://cert-portal.siemens.com/productcert/pdf/ssa-232418.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-273799.pdfVendor Advisory
https://www.us-cert.gov/ics/advisories/icsa-19-344-04Third Party Advisory, US Government Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-232418.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-273799.pdfVendor Advisory
https://www.us-cert.gov/ics/advisories/icsa-19-344-04Third Party Advisory, US Government Resource

Timeline

Published: Aug 13, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-10929?

A vulnerability has been identified in SIMATIC CP 1626 (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V20.8), SIMATIC HMI Panel (incl. SIPLUS variants) (All versions), SIMATIC NET PC Software V14 (All versions < V14 SP1 Update 14), SIMATIC NET PC Software V15 (All versions), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.4.0), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V2.8.1), SIMATIC S7-1500 Software Controller (All versions < V20.8), SIMATIC S7-PLCSIM Advanced (All versions < V3.0), SIMATIC STEP 7 (TIA Portal) (All versions < V16), SIMATIC WinCC (TIA Portal) (All versions < V16), SIMATIC WinCC OA (All versions < V3.16 P013), SIMATIC WinCC Runtime Advanced (All versions < V16), SIMATIC WinCC Runtime Professional (All versions < V16), TIM 1531 IRC (incl. SIPLUS NET variants) (All versions < V2.1). Affected devices contain a message protection bypass vulnerability due to certain properties in the calculation used for integrity protection. This could allow an attacker in a Man-in-the-Middle position to modify network traffic sent on port 102/tcp to the affected devices.

How severe is CVE-2019-10929?

CVE-2019-10929 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.98% probability of exploitation in the next 30 days.

How do I fix CVE-2019-10929?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.