{"cve":"CVE-2021-35530","nvd":{"published":"2022-06-07T21:15:14.640","modified":"2026-06-17T03:57:38.907","status":"Modified","description":"A vulnerability in the application authentication and authorization mechanism in Hitachi Energy's TXpert Hub CoreTec 4, that depends on a token validation of the session identifier, allows an unauthorized modified message to be executed in the server enabling an unauthorized actor to change an existing user password, and further gain authorized access into the system via login mechanism. This issue affects: Hitachi Energy TXpert Hub CoreTec 4 version 2.0.0 2.1.0; 2.1.0; 2.1.1; 2.1.2; 2.1.3; 2.2.0; 2.2.1.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","score":6.7},"cwes":["CWE-288"],"references":["https://search.abb.com/library/Download.aspx?DocumentID=8DBD000080&LanguageCode=en&DocumentPartId=&Action=Launch&utm_campaign=&utm_content=2022.04_5763_Cybersecurity%20Advisory%20Update_May_03&utm_medium=email&utm_source=Eloqua","https://search.abb.com/library/Download.aspx?DocumentID=8DBD000080&LanguageCode=en&DocumentPartId=&Action=Launch&utm_campaign=&utm_content=2022.04_5763_Cybersecurity%20Advisory%20Update_May_03&utm_medium=email&utm_source=Eloqua"],"products":["hitachienergy:txpert_hub_coretec_4_firmware"],"source":"nvd","synced_at":"2026-10-19T21:32:39.174919249+00:00"},"epss":{"cve":"CVE-2021-35530","score":0.00223,"percentile":0.12907,"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."]}