CVE-2026-87886

HIGH CVSS 3.0: 7.8
Updated Sep 18, 2026
Acronis
Parameter Value
CVSS 7.8 (HIGH)
Type CWE-276
Vendor Acronis
Public PoC No

Local privilege escalation due to insecure file permissions. The following products are affected: Acronis Backup plugin for cPanel & WHM (Linux) before build 1.9.3.1021, Acronis Backup extension for Plesk (Linux) before build 1.8.11.638, Acronis Backup plugin for DirectAdmin (Linux) before build 1.2.3.238.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.0

Weakness Type (CWE)

Vulnerable Products

acronis:acronis backup plugin for directadmin acronis:acronis backup plugin for cpanel & whm acronis:acronis backup extension for plesk