{"cve":"CVE-2021-34569","nvd":{"published":"2022-11-09T16:15:12.433","modified":"2026-06-17T03:56:08.763","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-787"],"references":["https://cert.vde.com/en/advisories/VDE-2020-036/","https://cert.vde.com/en/advisories/VDE-2020-036/"],"products":["wago:750-8100_firmware","wago:750-8101\\/025-000_firmware","wago:750-8101_firmware","wago:750-8102\\/025-000_firmware","wago:750-8102_firmware","wago:750-8202\\/000-011_firmware","wago:750-8202\\/000-012_firmware","wago:750-8202\\/000-022_firmware","wago:750-8202\\/025-000_firmware","wago:750-8202\\/025-001_firmware","wago:750-8202\\/025-002_firmware","wago:750-8202\\/040-000_firmware","wago:750-8202\\/040-001_firmware","wago:750-8202_firmware","wago:752-8303\\/8000-002_firmware","wago:762-4101_firmware","wago:762-4102_firmware","wago:762-4103_firmware","wago:762-4104_firmware","wago:762-4201\\/8000-001_firmware","wago:762-4202\\/8000-001_firmware","wago:762-4203\\/8000-001_firmware","wago:762-4204\\/8000-001_firmware","wago:762-4205\\/8000-001_firmware","wago:762-4205\\/8000-002_firmware","wago:762-4206\\/8000-001_firmware","wago:762-4206\\/8000-002_firmware","wago:762-4301\\/8000-002_firmware","wago:762-4302\\/8000-002_firmware","wago:762-4303\\/8000-002_firmware","wago:762-4304\\/8000-002_firmware","wago:762-4305\\/8000-002_firmware","wago:762-4306\\/8000-002_firmware","wago:762-5203\\/8000-001_firmware","wago:762-5204\\/8000-001_firmware","wago:762-5205\\/8000-001_firmware","wago:762-5206\\/8000-001_firmware","wago:762-5303\\/8000-002_firmware","wago:762-5304\\/8000-002_firmware","wago:762-5305\\/8000-002_firmware","wago:762-5306\\/8000-002_firmware","wago:762-6201\\/8000-001_firmware","wago:762-6202\\/8000-001_firmware","wago:762-6203\\/8000-001_firmware","wago:762-6204\\/8000-001_firmware","wago:762-6301\\/8000-002_firmware","wago:762-6302\\/8000-002_firmware","wago:762-6303\\/8000-002_firmware","wago:762-6304\\/8000-002_firmware"],"source":"nvd","synced_at":"2026-10-19T21:37:08.729216836+00:00"},"epss":{"cve":"CVE-2021-34569","score":0.00872,"percentile":0.58893,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}