What’s Vulnerable › Vulnerabilities

CVE-2020-12506: WAGO: Authentication Bypass Vulnerability in WAGO 750-36X and WAGO 750-8XX Versions <= FW03

• Severity: medium (CVSS 6.4 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-09-30 · updated 2026-06-17
• Weakness: CWE-306

Description

Improper Authentication vulnerability in WAGO 750-8XX series with FW version <= FW03 allows an attacker to change the settings of the devices by sending specifically constructed requests without authentication This issue affects: WAGO 750-362, WAGO 750-363, WAGO 750-823, WAGO 750-832/xxx-xxx, WAGO 750-862, WAGO 750-891, WAGO 750-890/xxx-xxx in versions FW03 and prior versions.

Affected products

• WAGO 750-362 Firmware: through fw03
• WAGO 750-363 Firmware: through fw03
• WAGO 750-823 Firmware: through fw03
• WAGO 750-832 Firmware: through fw03
• WAGO 750-862 Firmware: through fw03
• WAGO 750-890 Firmware: through fw03
• WAGO 750-891 Firmware: through fw03

References

• https://cert.vde.com/en-us/advisories/vde-2020-028
• https://cert.vde.com/en-us/advisories/vde-2020-028

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