CVE-2021-43035
highpriority · track · 40EPSS 0.034 · 89 %ileEUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://helpdesk.kaseya.com/hc/en-gb/articles/4412762258961cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-43035cnnvd
- https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1cnnvd
- https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-2cnnvd
- https://helpdesk.kaseya.com/hc/en-gb/articles/4412762258961enisa_euvd
- https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1enisa_euvd
- https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-2enisa_euvd
- https://helpdesk.kaseya.com/hc/en-gb/articles/4412762258961Vendor Advisorynvd
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