What’s Vulnerable › Vulnerabilities

CVE-2020-12516: WAGO: PLC families 750-88x and 750-352 prone to DoS attack

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-12-10 · updated 2026-06-17
• Weakness: CWE-400

Description

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.

Affected products

• WAGO 750-331 Firmware: from fw1 through fw10
• WAGO 750-352 Firmware: from fw1 through fw10
• WAGO 750-829 Firmware: from fw1 through fw10
• WAGO 750-831 Firmware: from fw1 through fw10
• WAGO 750-852 Firmware: from fw1 through fw10
• WAGO 750-880 Firmware: from fw1 through fw10
• WAGO 750-881 Firmware: from fw1 through fw10
• WAGO 750-882 Firmware: from fw1 through fw10
• WAGO 750-885 Firmware: from fw1 through fw10
• WAGO 750-889 Firmware: from fw1 through fw10

References

• https://cert.vde.com/en-us/advisories/vde-2020-042
• https://us-cert.cisa.gov/ics/advisories/icsa-20-308-01
• https://cert.vde.com/en-us/advisories/vde-2020-042
• https://us-cert.cisa.gov/ics/advisories/icsa-20-308-01

Get alerted when CVE-2020-12516 or the next vulnerability affects your stack