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TI-2021-17450 Aliases CVE-2021-40385GHSA-cjcw-89fv-xfjw

An issue was discovered in the server software in Kaseya Unitrends Backup Software before…

Priority MEDIUM 40Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

An issue was discovered in the server software in Kaseya Unitrends Backup Software before 10.5.5-2. There is a privilege escalation from read-only user to admin.

Why it matters now

EPSS 0.01133 66th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:kaseya:unitrends_backup_software:*:*:*:*:*:*:*:*before 10.5.5-2VulnerableKaseya
  • cpe:2.3:a:kaseya:unitrends_backup_software:*:*:*:*:*:*:*:* Versions before 10.5.5-2 Vulnerable ·Kaseya

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-40385
  2. 2026-10-03 Alias added: GHSA-cjcw-89fv-xfjw

References

Advisory 1

  • TI-2021-17452 An issue was discovered in the server software in Kaseya Unitrends Backup Software before… CVSS 3.1HIGH 8.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences