Search Results (17 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2015-10123 1 Wago 10 750-352 Firmware, 750-829 Firmware, 750-831 Firmware and 7 more 2026-04-15 8.8 High
An unautheticated remote attacker could send specifically crafted packets to a affected device. If an authenticated user then views that data in a specific page of the web-based management a buffer overflow will be triggered to gain full access of the device.
CVE-2021-30187 2 Codesys, Wago 55 Runtime Toolkit, 750-8202, 750-8202 Firmware and 52 more 2025-08-15 5.3 Medium
CODESYS V2 runtime system SP before 2.4.7.55 has Improper Neutralization of Special Elements used in an OS Command.
CVE-2021-30195 2 Codesys, Wago 56 Plcwinnt, Runtime Toolkit, 750-8202 and 53 more 2025-08-15 7.5 High
CODESYS V2 runtime system before 2.4.7.55 has Improper Input Validation.
CVE-2021-34583 2 Codesys, Wago 55 Codesys, 750-8202, 750-8202 Firmware and 52 more 2025-08-15 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-2021-34584 2 Codesys, Wago 55 Codesys, 750-8202, 750-8202 Firmware and 52 more 2025-08-15 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-2021-34585 2 Codesys, Wago 55 Codesys, 750-8202, 750-8202 Firmware and 52 more 2025-08-15 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-2021-34586 2 Codesys, Wago 55 Codesys, 750-8202, 750-8202 Firmware and 52 more 2025-08-15 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-2021-34595 2 Codesys, Wago 57 Codesys, Plcwinnt, Runtime Toolkit and 54 more 2025-08-15 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-2021-34596 2 Codesys, Wago 57 Codesys, Plcwinnt, Runtime Toolkit and 54 more 2025-08-15 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-2021-21000 1 Wago 54 750-8202, 750-8202 Firmware, 750-8203 and 51 more 2025-08-15 5.3 Medium
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.
CVE-2021-21001 1 Wago 54 750-8202, 750-8202 Firmware, 750-8203 and 51 more 2025-08-15 9.1 Critical
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.
CVE-2021-30186 2 Codesys, Wago 56 Plcwinnt, Runtime Toolkit, 750-8202 and 53 more 2025-08-15 7.5 High
CODESYS V2 runtime system SP before 2.4.7.55 has a Heap-based Buffer Overflow.
CVE-2023-1620 1 Wago 152 750-331, 750-331 Firmware, 750-8202 and 149 more 2024-11-21 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 2024-11-21 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-2020-12516 1 Wago 20 750-331, 750-331 Firmware, 750-352 and 17 more 2024-11-21 7.5 High
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.
CVE-2019-10712 1 Wago 32 750-330, 750-330 Firmware, 750-352 and 29 more 2024-11-21 N/A
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.
CVE-2018-8836 1 Wago 16 750-829, 750-829 Firmware, 750-831 and 13 more 2024-11-21 N/A
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.