Total
29 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2023-1620 | 1 Wago | 152 750-331, 750-331 Firmware, 750-8202 and 149 more | 2026-06-17 | N/A | 4.9 MEDIUM |
| 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. | |||||
| CVE-2023-1619 | 1 Wago | 152 750-331, 750-331 Firmware, 750-8202 and 149 more | 2026-06-17 | N/A | 4.9 MEDIUM |
| Multiple WAGO devices in multiple versions may allow an authenticated remote attacker with high privileges to DoS the device by sending a malformed packet. | |||||
| CVE-2022-22511 | 1 Wago | 49 750-8100, 750-8100 Firmware, 750-8101 and 46 more | 2026-06-17 | 3.5 LOW | 5.4 MEDIUM |
| Various configuration pages of the device are vulnerable to reflected XSS (Cross-Site Scripting) attacks. An authorized attacker with user privileges may use this to gain access to confidential information on a PC that connects to the WBM after it has been compromised. | |||||
| CVE-2021-34596 | 2 Codesys, Wago | 57 Codesys, Plcwinnt, Runtime Toolkit and 54 more | 2026-06-17 | 4.0 MEDIUM | 6.5 MEDIUM |
| 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. | |||||
| CVE-2021-34595 | 2 Codesys, Wago | 57 Codesys, Plcwinnt, Runtime Toolkit and 54 more | 2026-06-17 | 5.5 MEDIUM | 8.1 HIGH |
| 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. | |||||
| 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-2021-34569 | 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. | |||||