🛡️ CVE-2023-28766
🟠 CVSS 7.5 — High ✅ No Known Exploit CWE-476 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A vulnerability has been identified in SIPROTEC 5 6MD85 (CP300) (All versions >= V7.80 = V7.80 = V7.80 = V7.80 = V7.80 < V9.40), SIPROTEC 5 7SA82 (CP100) (All versions < V8.90), SIPROTEC 5 7SA82 (CP150) (All versions = V7.80 = V7.80 < V9.40), SIPROTEC 5 7SD82 (CP100) (All versions < V8.90), SIPROTEC 5 7SD82 (CP150) (All versions = V7.80 = 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 = V7.80 = V7.80 < V9.40), SIPROTEC 5 7SK82 (CP100) (All versions < V8.89), SIPROTEC 5 7SK82 (CP150) (All versions = V7.80 < V9.40), SIPROTEC 5 7SL82 (CP100) (All versions < V8.90), SIPROTEC 5 7SL82 (CP150) (All versions = V7.80 = V7.80 = V7.80 = V7.80 = V7.80 < V9.40), SIPROTEC 5 7SX82 (CP150) (All versions = V7.80 = V7.80 < V9.40), SIPROTEC 5 7UT82 (CP100) (All versions < V8.90), SIPROTEC 5 7UT82 (CP150) (All versions = V7.80 = V7.80 = V7.80 = V7.80 = V7.80 = 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.

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-476
Public Exploit ✅ No
Source NVD
Published 2023-04-11
Updated 2026-06-08
Modified 2025-11-11
Fix URL N/A

Affected Packages

Software From version Fixed in
siprotec-5-6md85-firmware 9.40
siprotec-5-6md86-firmware 9.40
siprotec-5-6md89-firmware
siprotec-5-6mu85-firmware 9.40
siprotec-5-7ke85-firmware 9.40
siprotec-5-7sa82-firmware 9.40
siprotec-5-7sa84-firmware
siprotec-5-7sa86-firmware 9.40
siprotec-5-7sa87-firmware 9.40
siprotec-5-7sd82-firmware 9.40
siprotec-5-7sd84-firmware
siprotec-5-7sd86-firmware 9.40
siprotec-5-7sd87-firmware 9.40
siprotec-5-7sj81-firmware 9.40
siprotec-5-7sj82-firmware 9.40
siprotec-5-7sj85-firmware 9.40
siprotec-5-7sj86-firmware 9.40
siprotec-5-7sk82-firmware 9.40
siprotec-5-7sk85-firmware 9.40
siprotec-5-7sl82-firmware 9.40
siprotec-5-7sl86-firmware 9.40
siprotec-5-7sl87-firmware 9.40
siprotec-5-7ss85-firmware 9.40
siprotec-5-7st85-firmware
siprotec-5-7st86-firmware
siprotec-5-7sx82-firmware 9.40
siprotec-5-7sx85-firmware 9.40
siprotec-5-7um85-firmware 9.40
siprotec-5-7ut82-firmware 9.40
siprotec-5-7ut85-firmware 9.40
siprotec-5-7ut86-firmware 9.40
siprotec-5-7ut87-firmware 9.40
siprotec-5-7ve85-firmware 9.40
siprotec-5-7vk87-firmware 9.40
siprotec-5-7vu85-firmware 9.40
siprotec-5-communication-module-ethba2el-firmware 9.40
siprotec-5-communication-module-ethbb2fo-firmware 9.40
siprotec-5-communication-module-ethbd2fo-firmware 9.40
siprotec-5-compact-7sx800-firmware 9.40

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