{"cve":"CVE-2021-34581","nvd":{"published":"2021-08-31T11:15:07.830","modified":"2026-06-17T03:56:10.183","status":"Modified","description":"Missing Release of Resource after Effective Lifetime vulnerability in OpenSSL implementation of WAGO 750-831/xxx-xxx, 750-880/xxx-xxx, 750-881, 750-889 in versions FW4 up to FW15 allows an unauthenticated attacker to cause DoS on the device.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-772"],"references":["https://cert.vde.com/en-us/advisories/vde-2021-038","https://cert.vde.com/en-us/advisories/vde-2021-038"],"products":["wago:750-831\\/000-002_firmware","wago:750-831_firmware","wago:750-880\\/025-000_firmware","wago:750-880\\/025-001_firmware","wago:750-880\\/025-002_firmware","wago:750-880\\/040-000_firmware","wago:750-880_firmware","wago:750-881_firmware","wago:750-889_firmware"],"source":"nvd","synced_at":"2026-10-19T21:21:57.125947417+00:00"},"epss":{"cve":"CVE-2021-34581","score":0.01022,"percentile":0.63451,"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."]}