Name: CVE-2026-87886: Incorrect Default Permissions
Creator: Rapid7
Published: 2026-09-17T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-87886, CWE-276, Exploited in the Wild, CISA KEV Exploit, Zero Day, CVSS 7.8, EPSS 0.00233, CISA KEV

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.

CVSS Details

CVSS 3.0 Base Score: 7.8
CVSS 3.0 Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Acronis Backup	—	Upgrade the Acronis Backup control-panel integration to a fixed build	Sep 29, 2026	Sep 17, 2026

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CVSS Details

Covered by Rapid7

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