CVE-2021-45031

CVE-2021-45031 is a high vulnerability published on March 30, 2022. A vulnerability in MEPSAN's USC+ before version 3.0 has a weakness in login function which lets attackers to generate high privileged accounts passwords.

CVE-2021-45031 was first published in the National Vulnerability Database on March 30, 2022, with the most recent update on May 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

CVE-2021-45031 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 57.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

CVE-2021-45031 has a CVSS v3 base score of 7.7 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8.

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-45031, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.