CVE-2023-46156: Siemens SIMATIC Drive Controller CPU 1504d Tf Firmware

High severity, CVSS 7.5. EPSS: 1.2% chance of exploitation in the next 30 days.

Affected devices improperly handle specially crafted packets sent to port 102/tcp. This could allow an attacker to create a denial of service condition. A restart is needed to restore normal operations.

Affected products

  • Siemens SIMATIC Drive Controller CPU 1504d Tf Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC Drive Controller CPU 1507d Tf Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC Et 200sp Open Control 1515sp PC2 Firmware: any version
  • Siemens SIMATIC s7-1500 CPU 1510sp-1 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1510sp F-1 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1511-1 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1511c-1 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1511f-1 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1511t-1 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1511tf-1 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1512c-1 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1512sp-1 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1512sp F-1 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1513-1 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1513f-1 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1513r-1 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1514sp-2 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1514sp F-2 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1514spt-2 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1514spt F-2 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1515-2 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1515f-2 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1515r-2 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1515t-2 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • Siemens SIMATIC s7-1500 CPU 1515tf-2 Pn Firmware: before 3.1.0 (fixed in 3.1.0)
  • and 51 more

Published 2023-12-12. Last modified 2026-06-17.