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CVE-2020-15791

MEDIUM
6.5
CVSS Severity Score
EPSS Score0.0580%
EPSS Percentile42.92th
Published2020年9月9日
Last Modified2026年6月2日

Vulnerability Description

A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 CPU family (incl. SIPLUS variants) (All versions), SIMATIC WinAC RTX (F) 2010 (All versions), SINUMERIK 840D sl (All versions). The authentication protocol between a client and a PLC via port 102/tcp (ISO-TSAP) insufficiently protects the transmitted password. This could allow an attacker that is able to intercept the network traffic to obtain valid PLC credentials.

Affected Platforms (CPE)

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Siemens

Simatic S7 300 Cpu 312 Firmware

All versions
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Siemens

Simatic S7 300 Cpu 314 Firmware

All versions
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Siemens

Simatic S7 300 Cpu 315 2 Dp Firmware

All versions
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Siemens

Simatic S7 300 Cpu 315 2 Pn Firmware

All versions
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Siemens

Simatic S7 300 Cpu 317 2 Pn Firmware

All versions
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Siemens

Simatic S7 300 Cpu 317 2 Dp Firmware

All versions
💻
Siemens

Simatic S7 300 Cpu 315f 2 Dp Firmware

All versions
💻
Siemens

Simatic S7 300 Cpu 315f 2 Pn Firmware

All versions
💻
Siemens

Simatic S7 300 Cpu 317f 2 Pn Firmware

All versions
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Siemens

Simatic S7 300 Cpu 317f 2 Dp Firmware

All versions
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Siemens

Simatic S7 400 Cpu 412 Firmware

All versions
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Siemens

Simatic S7 400 Cpu 414 Firmware

All versions
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Siemens

Simatic S7 400 Cpu 416 Firmware

All versions
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Siemens

Simatic S7 400 Cpu 417 Firmware

All versions

References & Advisories

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