{"cve":"CVE-2021-43035","nvd":{"published":"2021-12-06T04:15:07.193","modified":"2026-06-17T04:10:24.547","status":"Modified","description":"An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. Two unauthenticated SQL injection vulnerabilities were discovered, allowing arbitrary SQL queries to be injected and executed under the postgres superuser account. Remote code execution was possible, leading to full access to the postgres user account.","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-89"],"references":["https://helpdesk.kaseya.com/hc/en-gb/articles/4412762258961","https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1","https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-2","https://helpdesk.kaseya.com/hc/en-gb/articles/4412762258961","https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1"],"products":["kaseya:unitrends_backup"],"source":"nvd","synced_at":"2026-10-19T21:25:41.256909649+00:00"},"epss":{"cve":"CVE-2021-43035","score":0.0342,"percentile":0.88903,"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."]}