{"cve":"CVE-2021-34574","nvd":{"published":"2021-08-02T11:15:11.350","modified":"2026-06-17T03:56:09.380","status":"Modified","description":"In MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2 an authenticated attacker can change the password of his account into a new password that violates the password policy by intercepting and modifying the request that is send to the server.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","score":4.3},"cwes":["CWE-669"],"references":["https://cert.vde.com/en/advisories/VDE-2021-030","https://cert.vde.com/en/advisories/VDE-2022-039","https://cert.vde.com/en/advisories/VDE-2021-030","https://cert.vde.com/en/advisories/VDE-2022-039"],"products":["helmholz:myrex24","helmholz:myrex24.virtual","mbconnectline:mbconnect24","mbconnectline:mymbconnect24"],"source":"nvd","synced_at":"2026-10-19T21:21:13.713336758+00:00"},"epss":{"cve":"CVE-2021-34574","score":0.00659,"percentile":0.51533,"date":"2026-11-01"},"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."]}