Critical severity9.1NVD Advisory· Published May 24, 2021· Updated Jun 17, 2026
CVE-2021-21001
CVE-2021-21001
Description
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.
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Affected products
3- WAGO/Series Ethernet Controllerv5Range: 750-8202/xxx-xxx
- WAGO/Series PFC200 Controllerv5Range: 750-823
Patches
Vulnerability mechanics
References
1- cert.vde.com/en-us/advisories/vde-2021-014nvdThird Party Advisory
News mentions
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