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Medium severity5.5NVD Advisory· Published Dec 13, 2022· Updated Jun 17, 2026

CVE-2021-44694

CVE-2021-44694

Description

Affected devices don't process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a denial of service in the device.

Affected products

78
  • Siemens Foundation/Affected devicesllm-create
  • Siemens Foundation/SIMATIC Drive Controller familycpe-rescue2 versions
    All versions < V2.9.7+ 1 more
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
  • Siemens Foundation/SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants)cpe-rescue
    Range: All versions < V21.9.7
  • Siemens Foundation/SIMATIC CP 1242-7 V2 (incl. SIPLUS variants)cpe-rescue
    Range: All versions < V4.6.0
  • Siemens Foundation/Simatic S7 1511 1 Pn CPUcpe-rescue10 versions
    All versions < V2.9.7+ 9 more
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
  • Siemens Foundation/Simatic S7 1513 1 Pn CPUcpe-rescue3 versions
    All versions < V2.9.7+ 2 more
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
  • Siemens Foundation/Simatic S7 1515 2 Pn CPUcpe-rescue7 versions
    All versions < V2.9.7+ 6 more
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
  • Siemens Foundation/Simatic S7 1516 3 Pn\/dp CPUcpe-rescue9 versions
    All versions < V2.9.7+ 8 more
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V2.9.7
  • Siemens Foundation/Simatic S7 1516f 3 Pn\/dp CPUcpe-rescue2 versions
    All versions < V2.9.7+ 1 more
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
  • Siemens Foundation/Simatic S7 1518 4 Pn\/dp CPUcpe-rescue6 versions
    All versions < V3.0.1+ 5 more
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V2.9.7
  • Siemens Foundation/Simatic S7 1518f 4 Pn\/dp CPUcpe-rescue3 versions
    All versions < V3.0.1+ 2 more
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V2.9.7
  • Siemens/SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PNv5
    Range: All versions < V2.9.7
  • Siemens/SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PNv5
    Range: All versions < V2.9.7
  • Siemens Foundation/Simatic S7 1500 Software Controllercpe-rescue
    Range: All versions < V21.9.7
  • Siemens Foundation/SIMATIC S7-PLCSIM V17cpe-rescue
    Range: All versions < V5.0
  • Siemens/SIPLUS ET 200SP CPU 1510SP-1 PNv5
    Range: All versions < V2.9.7
  • Siemens Foundation/SIPLUS ET 200SP CP 1542SP-1 IRC TX RAILcpe-rescue3 versions
    All versions < V2.9.7+ 2 more
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
    • (no CPE)range: All versions < V2.9.7
  • Siemens/SIPLUS ET 200SP CPU 1510SP F-1 PNv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS ET 200SP CPU 1510SP F-1 PN RAILv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS ET 200SP CPU 1512SP-1 PNv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS ET 200SP CPU 1512SP F-1 PNv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS S7-1500 CPU 1511-1 PNv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS S7-1500 CPU 1511-1 PN T1 RAILv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS S7-1500 CPU 1511-1 PN TX RAILv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS S7-1500 CPU 1511F-1 PNv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS S7-1500 CPU 1513-1 PNv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS S7-1500 CPU 1513F-1 PNv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS S7-1500 CPU 1515F-2 PNv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS S7-1500 CPU 1515F-2 PN RAILv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS S7-1500 CPU 1515F-2 PN T2 RAILv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS S7-1500 CPU 1515R-2 PNv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS S7-1500 CPU 1515R-2 PN TX RAILv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS S7-1500 CPU 1516-3 PN/DP RAILv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS S7-1500 CPU 1516-3 PN/DP TX RAILv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS S7-1500 CPU 1516F-3 PN/DP RAILv5
    Range: All versions < V2.9.7
  • Siemens/SIPLUS S7-1500 CPU 1517H-3 PNv5
    Range: All versions < V3.0.1
  • Siemens Foundation/Siplus S7 1500 CPU 1518 4 Pn\/dp Mfp Firmwarecpe-rescue4 versions
    All versions < V3.0.1+ 3 more
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V3.0.1
    • (no CPE)range: All versions < V3.0.1
  • Siemens Foundation/TIM 1531 IRCcpe-rescue2 versions
    All versions < V2.3.6+ 1 more
    • (no CPE)range: All versions < V2.3.6
    • (no CPE)range: All versions < V2.3.6

Patches

Vulnerability mechanics

References

1

News mentions

0

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CVE-2021-44694 · Medium · VYPR