Filtered by vendor Wago
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Total
114 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2021-34593 | 2 Codesys, Wago | 28 Plcwinnt, Runtime Toolkit, 750-8202 and 25 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid requests may result in several denial-of-service conditions. Running PLC programs may be stopped, memory may be leaked, or further communication clients may be blocked from accessing the PLC. | |||||
| CVE-2021-34586 | 2 Codesys, Wago | 55 Codesys, 750-8202, 750-8202 Firmware and 52 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| 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. | |||||
| CVE-2021-34585 | 2 Codesys, Wago | 55 Codesys, 750-8202, 750-8202 Firmware and 52 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| 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. | |||||
| CVE-2021-34584 | 2 Codesys, Wago | 55 Codesys, 750-8202, 750-8202 Firmware and 52 more | 2026-06-17 | 6.4 MEDIUM | 9.1 CRITICAL |
| 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. | |||||
| CVE-2021-34583 | 2 Codesys, Wago | 55 Codesys, 750-8202, 750-8202 Firmware and 52 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| 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. | |||||
| CVE-2021-34581 | 1 Wago | 18 750-831, 750-831\/000-002, 750-831\/000-002 Firmware and 15 more | 2026-06-17 | 7.8 HIGH | 7.5 HIGH |
| 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. | |||||
| CVE-2021-34578 | 1 Wago | 24 750-362, 750-362 Firmware, 750-363 and 21 more | 2026-06-17 | 6.8 MEDIUM | 9.8 CRITICAL |
| This vulnerability allows an attacker who has access to the WBM to read and write settings-parameters of the device by sending specifically constructed requests without authentication on multiple WAGO PLCs in firmware versions up to FW07. | |||||
| CVE-2021-34569 | 1 Wago | 98 750-8100, 750-8100 Firmware, 750-8101 and 95 more | 2026-06-17 | N/A | 9.8 CRITICAL |
| In WAGO I/O-Check Service in multiple products an attacker can send a specially crafted packet containing OS commands to crash the diagnostic tool and write memory. | |||||
| CVE-2021-34568 | 1 Wago | 98 750-8100, 750-8100 Firmware, 750-8101 and 95 more | 2026-06-17 | N/A | 7.5 HIGH |
| In WAGO I/O-Check Service in multiple products an unauthenticated remote attacker can send a specially crafted packet containing OS commands to provoke a denial of service. | |||||
| CVE-2021-34567 | 1 Wago | 98 750-8100, 750-8100 Firmware, 750-8101 and 95 more | 2026-06-17 | N/A | 8.2 HIGH |
| In WAGO I/O-Check Service in multiple products an unauthenticated remote attacker can send a specially crafted packet containing OS commands to provoke a denial of service and an limited out-of-bounds read. | |||||
| CVE-2021-34566 | 1 Wago | 98 750-8100, 750-8100 Firmware, 750-8101 and 95 more | 2026-06-17 | N/A | 9.1 CRITICAL |
| In WAGO I/O-Check Service in multiple products an unauthenticated remote attacker can send a specially crafted packet containing OS commands to crash the iocheck process and write memory resulting in loss of integrity and DoS. | |||||
| CVE-2021-30195 | 2 Codesys, Wago | 56 Plcwinnt, Runtime Toolkit, 750-8202 and 53 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| CODESYS V2 runtime system before 2.4.7.55 has Improper Input Validation. | |||||
| CVE-2021-30194 | 2 Codesys, Wago | 55 V2 Web Server, 750-8202, 750-8202 Firmware and 52 more | 2026-06-17 | 6.4 MEDIUM | 9.1 CRITICAL |
| CODESYS V2 Web-Server before 1.1.9.20 has an Out-of-bounds Read. | |||||
| CVE-2021-30193 | 2 Codesys, Wago | 55 V2 Web Server, 750-8202, 750-8202 Firmware and 52 more | 2026-06-17 | 7.5 HIGH | 9.8 CRITICAL |
| CODESYS V2 Web-Server before 1.1.9.20 has an Out-of-bounds Write. | |||||
| CVE-2021-30192 | 2 Codesys, Wago | 55 V2 Web Server, 750-8202, 750-8202 Firmware and 52 more | 2026-06-17 | 7.5 HIGH | 9.8 CRITICAL |
| CODESYS V2 Web-Server before 1.1.9.20 has an Improperly Implemented Security Check. | |||||
| CVE-2021-30191 | 2 Codesys, Wago | 55 V2 Web Server, 750-8202, 750-8202 Firmware and 52 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| CODESYS V2 Web-Server before 1.1.9.20 has a a Buffer Copy without Checking the Size of the Input. | |||||
| CVE-2021-30190 | 2 Codesys, Wago | 55 V2 Web Server, 750-8202, 750-8202 Firmware and 52 more | 2026-06-17 | 7.5 HIGH | 9.8 CRITICAL |
| CODESYS V2 Web-Server before 1.1.9.20 has Improper Access Control. | |||||
| CVE-2021-30189 | 2 Codesys, Wago | 55 V2 Web Server, 750-8202, 750-8202 Firmware and 52 more | 2026-06-17 | 7.5 HIGH | 9.8 CRITICAL |
| CODESYS V2 Web-Server before 1.1.9.20 has a Stack-based Buffer Overflow. | |||||
| CVE-2021-30188 | 2 Codesys, Wago | 55 V2 Runtime System Sp, 750-8202, 750-8202 Firmware and 52 more | 2026-06-17 | 7.5 HIGH | 9.8 CRITICAL |
| CODESYS V2 runtime system SP before 2.4.7.55 has a Stack-based Buffer Overflow. | |||||
| CVE-2021-30187 | 2 Codesys, Wago | 55 Runtime Toolkit, 750-8202, 750-8202 Firmware and 52 more | 2026-06-17 | 4.6 MEDIUM | 5.3 MEDIUM |
| CODESYS V2 runtime system SP before 2.4.7.55 has Improper Neutralization of Special Elements used in an OS Command. | |||||