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High · 7.5 CVE-2023-28766 EUVD-2023-32401GHSA-frg8-xf9g-3fjf

A vulnerability has been identified in SIPROTEC 5 6MD85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 6MD86 (CP300) (All versions >= …

Published Apr 11, 2023 · Updated Nov 11, 2025 · Assigned by siemens

Vendor: Siemens Product: SIPROTEC 5 6MD85 (CP300) Product: SIPROTEC 5 6MD86 (CP300) Product: SIPROTEC 5 6MD89 (CP300) Product: SIPROTEC 5 6MU85 (CP300) Product: SIPROTEC 5 7KE85 (CP300) Product: SIPROTEC 5 7SA82 (CP100) Product: SIPROTEC 5 7SA82 (CP150) Product: SIPROTEC 5 7SA86 (CP300) Product: SIPROTEC 5 7SA87 (CP300) Product: SIPROTEC 5 7SD82 (CP100) Product: SIPROTEC 5 7SD82 (CP150) Product: SIPROTEC 5 7SD86 (CP300) Product: SIPROTEC 5 7SD87 (CP300) Product: SIPROTEC 5 7SJ81 (CP100) Product: SIPROTEC 5 7SJ81 (CP150) Product: SIPROTEC 5 7SJ82 (CP100) Product: SIPROTEC 5 7SJ82 (CP150) Product: SIPROTEC 5 7SJ85 (CP300) Product: SIPROTEC 5 7SJ86 (CP300) Product: SIPROTEC 5 7SK82 (CP100) Product: SIPROTEC 5 7SK82 (CP150) Product: SIPROTEC 5 7SK85 (CP300) Product: SIPROTEC 5 7SL82 (CP100) Product: SIPROTEC 5 7SL82 (CP150) Product: SIPROTEC 5 7SL86 (CP300) Product: SIPROTEC 5 7SL87 (CP300) Product: SIPROTEC 5 7SS85 (CP300) Product: SIPROTEC 5 7ST85 (CP300) Product: SIPROTEC 5 7ST86 (CP300) Product: SIPROTEC 5 7SX82 (CP150) Product: SIPROTEC 5 7SX85 (CP300) Product: SIPROTEC 5 7UM85 (CP300) Product: SIPROTEC 5 7UT82 (CP100) Product: SIPROTEC 5 7UT82 (CP150) Product: SIPROTEC 5 7UT85 (CP300) Product: SIPROTEC 5 7UT86 (CP300) Product: SIPROTEC 5 7UT87 (CP300) Product: SIPROTEC 5 7VE85 (CP300) Product: SIPROTEC 5 7VK87 (CP300) Product: SIPROTEC 5 7VU85 (CP300) Product: SIPROTEC 5 Communication Module ETH-BA-2EL (Rev.1) Product: SIPROTEC 5 Communication Module ETH-BB-2FO (Rev. 1) Product: SIPROTEC 5 Communication Module ETH-BD-2FO Product: SIPROTEC 5 Compact 7SX800 (CP050) Category: ICS / OT

Description

A vulnerability has been identified in SIPROTEC 5 6MD85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 6MD86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 6MD89 (CP300) (All versions >= V7.80 < V9.64), SIPROTEC 5 6MU85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7KE85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SA82 (CP100) (All versions < V8.90), SIPROTEC 5 7SA82 (CP150) (All versions < V9.40), SIPROTEC 5 7SA86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SA87 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SD82 (CP100) (All versions < V8.90), SIPROTEC 5 7SD82 (CP150) (All versions < V9.40), SIPROTEC 5 7SD86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SD87 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SJ81 (CP100) (All versions < V8.89), SIPROTEC 5 7SJ81 (CP150) (All versions < V9.40), SIPROTEC 5 7SJ82 (CP100) (All versions < V8.89), SIPROTEC 5 7SJ82 (CP150) (All versions < V9.40), SIPROTEC 5 7SJ85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SJ86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SK82 (CP100) (All versions < V8.89), SIPROTEC 5 7SK82 (CP150) (All versions < V9.40), SIPROTEC 5 7SK85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SL82 (CP100) (All versions < V8.90), SIPROTEC 5 7SL82 (CP150) (All versions < V9.40), SIPROTEC 5 7SL86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SL87 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SS85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7ST85 (CP300) (All versions >= V7.80 < V9.64), SIPROTEC 5 7ST86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SX82 (CP150) (All versions < V9.40), SIPROTEC 5 7SX85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7UM85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7UT82 (CP100) (All versions < V8.90), SIPROTEC 5 7UT82 (CP150) (All versions < V9.40), SIPROTEC 5 7UT85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7UT86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7UT87 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7VE85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7VK87 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7VU85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 Communication Module ETH-BA-2EL (Rev.1) (All versions < V9.40 installed on CP150 and CP300 devices), SIPROTEC 5 Communication Module ETH-BA-2EL (Rev.1) (All versions < V8.89 installed on CP100 devices), SIPROTEC 5 Communication Module ETH-BB-2FO (Rev. 1) (All versions < V9.40 installed on CP150 and CP300 devices), SIPROTEC 5 Communication Module ETH-BB-2FO (Rev. 1) (All versions < V8.89 installed on CP100 devices), SIPROTEC 5 Communication Module ETH-BD-2FO (All versions < V9.40), SIPROTEC 5 Compact 7SX800 (CP050) (All versions < V9.40). Affected devices lack proper validation of http request parameters of the hosted web service.
An unauthenticated remote attacker could send specially crafted packets that could cause denial of service condition of the target device.

Affected products

VendorProductAffectedFixed
Siemens SIPROTEC 5 6MD85 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 6MD86 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 6MD89 (CP300) V7.80 – < V9.64 V9.64
Siemens SIPROTEC 5 6MU85 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7KE85 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7SA82 (CP100) < V8.90 V8.90
Siemens SIPROTEC 5 7SA82 (CP150) < V9.40 V9.40
Siemens SIPROTEC 5 7SA86 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7SA87 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7SD82 (CP100) < V8.90 V8.90
Siemens SIPROTEC 5 7SD82 (CP150) < V9.40 V9.40
Siemens SIPROTEC 5 7SD86 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7SD87 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7SJ81 (CP100) < V8.89 V8.89
Siemens SIPROTEC 5 7SJ81 (CP150) < V9.40 V9.40
Siemens SIPROTEC 5 7SJ82 (CP100) < V8.89 V8.89
Siemens SIPROTEC 5 7SJ82 (CP150) < V9.40 V9.40
Siemens SIPROTEC 5 7SJ85 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7SJ86 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7SK82 (CP100) < V8.89 V8.89
Siemens SIPROTEC 5 7SK82 (CP150) < V9.40 V9.40
Siemens SIPROTEC 5 7SK85 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7SL82 (CP100) < V8.90 V8.90
Siemens SIPROTEC 5 7SL82 (CP150) < V9.40 V9.40
Siemens SIPROTEC 5 7SL86 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7SL87 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7SS85 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7ST85 (CP300) V7.80 – < V9.64 V9.64
Siemens SIPROTEC 5 7ST86 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7SX82 (CP150) < V9.40 V9.40
Siemens SIPROTEC 5 7SX85 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7UM85 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7UT82 (CP100) < V8.90 V8.90
Siemens SIPROTEC 5 7UT82 (CP150) < V9.40 V9.40
Siemens SIPROTEC 5 7UT85 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7UT86 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7UT87 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7VE85 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7VK87 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 7VU85 (CP300) V7.80 – < V9.40 V9.40
Siemens SIPROTEC 5 Communication Module ETH-BA-2EL (Rev.1) < V9.40, < V8.89 V9.40
Siemens SIPROTEC 5 Communication Module ETH-BB-2FO (Rev. 1) < V9.40, < V8.89 V9.40
Siemens SIPROTEC 5 Communication Module ETH-BD-2FO < V9.40 V9.40
Siemens SIPROTEC 5 Compact 7SX800 (CP050) < V9.40 V9.40

Advisories 3

References