Total
27 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2021-30187 | 2 Codesys, Wago | 55 Runtime Toolkit, 750-8202, 750-8202 Firmware and 52 more | 2025-08-15 | 4.6 MEDIUM | 5.3 MEDIUM |
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CODESYS V2 runtime system SP before 2.4.7.55 has Improper Neutralization of Special Elements used in an OS Command.
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| CVE-2021-30188 | 2 Codesys, Wago | 55 V2 Runtime System Sp, 750-8202, 750-8202 Firmware and 52 more | 2025-08-15 | 7.5 HIGH | 9.8 CRITICAL |
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CODESYS V2 runtime system SP before 2.4.7.55 has a Stack-based Buffer Overflow.
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| CVE-2021-30189 | 2 Codesys, Wago | 55 V2 Web Server, 750-8202, 750-8202 Firmware and 52 more | 2025-08-15 | 7.5 HIGH | 9.8 CRITICAL |
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CODESYS V2 Web-Server before 1.1.9.20 has a Stack-based Buffer Overflow.
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| CVE-2021-30190 | 2 Codesys, Wago | 55 V2 Web Server, 750-8202, 750-8202 Firmware and 52 more | 2025-08-15 | 7.5 HIGH | 9.8 CRITICAL |
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CODESYS V2 Web-Server before 1.1.9.20 has Improper Access Control.
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| CVE-2021-30191 | 2 Codesys, Wago | 55 V2 Web Server, 750-8202, 750-8202 Firmware and 52 more | 2025-08-15 | 5.0 MEDIUM | 7.5 HIGH |
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CODESYS V2 Web-Server before 1.1.9.20 has a a Buffer Copy without Checking the Size of the Input.
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| CVE-2021-30192 | 2 Codesys, Wago | 55 V2 Web Server, 750-8202, 750-8202 Firmware and 52 more | 2025-08-15 | 7.5 HIGH | 9.8 CRITICAL |
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CODESYS V2 Web-Server before 1.1.9.20 has an Improperly Implemented Security Check.
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| CVE-2021-30193 | 2 Codesys, Wago | 55 V2 Web Server, 750-8202, 750-8202 Firmware and 52 more | 2025-08-15 | 7.5 HIGH | 9.8 CRITICAL |
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CODESYS V2 Web-Server before 1.1.9.20 has an Out-of-bounds Write.
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| CVE-2021-30194 | 2 Codesys, Wago | 55 V2 Web Server, 750-8202, 750-8202 Firmware and 52 more | 2025-08-15 | 6.4 MEDIUM | 9.1 CRITICAL |
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CODESYS V2 Web-Server before 1.1.9.20 has an Out-of-bounds Read.
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| CVE-2021-30195 | 2 Codesys, Wago | 56 Plcwinnt, Runtime Toolkit, 750-8202 and 53 more | 2025-08-15 | 5.0 MEDIUM | 7.5 HIGH |
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CODESYS V2 runtime system before 2.4.7.55 has Improper Input Validation.
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| CVE-2021-34583 | 2 Codesys, Wago | 55 Codesys, 750-8202, 750-8202 Firmware and 52 more | 2025-08-15 | 5.0 MEDIUM | 7.5 HIGH |
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Crafted web server requests may cause a heap-based buffer overflow and could therefore trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22.
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| CVE-2021-34584 | 2 Codesys, Wago | 55 Codesys, 750-8202, 750-8202 Firmware and 52 more | 2025-08-15 | 6.4 MEDIUM | 9.1 CRITICAL |
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Crafted web server requests can be utilised to read partial stack or heap memory or may trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22.
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| CVE-2021-34585 | 2 Codesys, Wago | 55 Codesys, 750-8202, 750-8202 Firmware and 52 more | 2025-08-15 | 5.0 MEDIUM | 7.5 HIGH |
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In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests can trigger a parser error. Since the parser result is not checked under all conditions, a pointer dereference with an invalid address can occur. This leads to a denial of service situation.
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| CVE-2021-34586 | 2 Codesys, Wago | 55 Codesys, 750-8202, 750-8202 Firmware and 52 more | 2025-08-15 | 5.0 MEDIUM | 7.5 HIGH |
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In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests may cause a Null pointer dereference in the CODESYS web server and may result in a denial-of-service condition.
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| CVE-2021-34595 | 2 Codesys, Wago | 57 Codesys, Plcwinnt, Runtime Toolkit and 54 more | 2025-08-15 | 5.5 MEDIUM | 8.1 HIGH |
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A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition or local memory overwrite.
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| CVE-2021-34596 | 2 Codesys, Wago | 57 Codesys, Plcwinnt, Runtime Toolkit and 54 more | 2025-08-15 | 4.0 MEDIUM | 6.5 MEDIUM |
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A crafted request may cause a read access to an uninitialized pointer in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition.
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| CVE-2021-21000 | 1 Wago | 54 750-8202, 750-8202 Firmware, 750-8203 and 51 more | 2025-08-15 | 5.0 MEDIUM | 5.3 MEDIUM |
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On WAGO PFC200 devices in different firmware versions with special crafted packets an attacker with network access to the device could cause a denial of service for the login service of the runtime.
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| CVE-2021-21001 | 1 Wago | 54 750-8202, 750-8202 Firmware, 750-8203 and 51 more | 2025-08-15 | 4.0 MEDIUM | 9.1 CRITICAL |
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On WAGO PFC200 devices in different firmware versions with special crafted packets an authorised attacker with network access to the device can access the file system with higher privileges.
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| CVE-2021-30186 | 2 Codesys, Wago | 56 Plcwinnt, Runtime Toolkit, 750-8202 and 53 more | 2025-08-15 | 5.0 MEDIUM | 7.5 HIGH |
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CODESYS V2 runtime system SP before 2.4.7.55 has a Heap-based Buffer Overflow.
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| CVE-2018-16210 | 1 Wago | 28 750-352, 750-352 Firmware, 750-362 and 25 more | 2025-06-13 | 4.3 MEDIUM | 6.1 MEDIUM |
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WAGO 750-88X and WAGO 750-89X Ethernet Controller devices, versions 01.09.18(13) and before, have XSS in the SNMP configuration via the webserv/cplcfg/snmp.ssi SNMP_DESC or SNMP_LOC_SNMP_CONT field.
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| CVE-2015-6472 | 1 Wago | 6 750-849, 750-849 Firmware, 750-881 and 3 more | 2025-04-20 | 5.0 MEDIUM | 9.8 CRITICAL |
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WAGO IO 750-849 01.01.27 and 01.02.05, WAGO IO 750-881, and WAGO IO 758-870 have weak credential management.
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| CVE-2023-1620 | 1 Wago | 152 750-331, 750-331 Firmware, 750-8202 and 149 more | 2024-11-21 | N/A | 4.9 MEDIUM |
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Multiple WAGO devices in multiple versions may allow an authenticated remote attacker with high privileges to DoS the device by sending a specifically crafted packet to the CODESYS V2 runtime.
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| CVE-2023-1619 | 1 Wago | 152 750-331, 750-331 Firmware, 750-8202 and 149 more | 2024-11-21 | N/A | 4.9 MEDIUM |
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Multiple WAGO devices in multiple versions may allow an authenticated remote attacker with high privileges to DoS the device by sending a malformed packet.
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| CVE-2021-34581 | 1 Wago | 18 750-831, 750-831\/000-002, 750-831\/000-002 Firmware and 15 more | 2024-11-21 | 7.8 HIGH | 7.5 HIGH |
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Missing Release of Resource after Effective Lifetime vulnerability in OpenSSL implementation of WAGO 750-831/xxx-xxx, 750-880/xxx-xxx, 750-881, 750-889 in versions FW4 up to FW15 allows an unauthenticated attacker to cause DoS on the device.
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| CVE-2020-12516 | 1 Wago | 20 750-331, 750-331 Firmware, 750-352 and 17 more | 2024-11-21 | 5.0 MEDIUM | 7.5 HIGH |
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Older firmware versions (FW1 up to FW10) of the WAGO PLC family 750-88x and 750-352 are vulnerable for a special denial of service attack.
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| CVE-2020-12505 | 1 Wago | 14 750-831, 750-831 Firmware, 750-852 and 11 more | 2024-11-21 | 6.4 MEDIUM | 8.2 HIGH |
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Improper Authentication vulnerability in WAGO 750-8XX series with FW version <= FW07 allows an attacker to change some special parameters without authentication. This issue affects: WAGO 750-852, WAGO 750-880/xxx-xxx, WAGO 750-881, WAGO 750-831/xxx-xxx, WAGO 750-882, WAGO 750-885/xxx-xxx, WAGO 750-889 in versions FW07 and below.
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| CVE-2019-10712 | 1 Wago | 32 750-330, 750-330 Firmware, 750-352 and 29 more | 2024-11-21 | 7.5 HIGH | 9.8 CRITICAL |
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The Web-GUI on WAGO Series 750-88x (750-330, 750-352, 750-829, 750-831, 750-852, 750-880, 750-881, 750-882, 750-884, 750-885, 750-889) and Series 750-87x (750-830, 750-849, 750-871, 750-872, 750-873) devices has undocumented service access.
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| CVE-2018-8836 | 1 Wago | 16 750-829, 750-829 Firmware, 750-831 and 13 more | 2024-11-21 | 5.0 MEDIUM | 5.3 MEDIUM |
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Wago 750 Series PLCs with firmware version 10 and prior include a remote attack may take advantage of an improper implementation of the 3 way handshake during a TCP connection affecting the communications with commission and service tools. Specially crafted packets may also be sent to Port 2455/TCP/IP, used in Codesys management software, which may result in a denial-of-service condition of communications with commissioning and service tools.
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