First published · Last updated
CVE-2026-87886: Acronis Backup Incorrect Default Permissions Vulnerability
Acronis Backup integrations for cPanel & WHM and Plesk contain an incorrect default permissions vulnerability that could permit privilege escalation. The advisory directs applying vendor mitigations and following CISA BOD 26-04 and forensics triage guidance.
Categories: technology
Generated scores
Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.
- Confidence
- 7/10
- Geographic reach
- 2/10
- Global importance
- 3/10
- Impact magnitude
- 4/10
- Positivity
- 2/10
- Urgency
- 6/10
Why it matters
Because the vulnerability can enable privilege escalation on affected systems, operators are instructed to apply the provided mitigations and guidance.

