Description
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.
Published: 2026-09-17
Score: 7.8 High
EPSS: < 1% Very Low
KEV: Yes
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 18 Sep 2026 15:30:00 +0000


Fri, 18 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Acronis acronis Backup
Linux
Linux linux Kernel
CPEs cpe:2.3:a:acronis:acronis_backup:*:*:*:*:*:cpanel:*:*
cpe:2.3:a:acronis:acronis_backup:*:*:*:*:*:directadmin:*:*
cpe:2.3:a:acronis:acronis_backup:*:*:*:*:*:plesk:*:*
cpe:2.3:a:acronis:acronis_backup:1.9.3:-:*:*:*:cpanel:*:*
cpe:2.3:a:acronis:acronis_backup:1.9.3:hotfix1:*:*:*:cpanel:*:*
cpe:2.3:a:acronis:acronis_backup:1.9.3:hotfix2:*:*:*:cpanel:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Vendors & Products Acronis acronis Backup
Linux
Linux linux Kernel
References

Fri, 18 Sep 2026 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Acronis
Acronis backup Extension For Plesk
Acronis backup Plugin For Cpanel \& Whm
Acronis backup Plugin For Directadmin
Vendors & Products Acronis
Acronis backup Extension For Plesk
Acronis backup Plugin For Cpanel \& Whm
Acronis backup Plugin For Directadmin

Thu, 17 Sep 2026 23:30:00 +0000

Type Values Removed Values Added
Description 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 1.2.4.238. 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.

Thu, 17 Sep 2026 23:15:00 +0000

Type Values Removed Values Added
Description 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 1.2.4.238.
Weaknesses CWE-276
References
Metrics cvssV3_0

{'score': 7.8, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

kev

{'dateAdded': '2026-09-16T00:00:00+00:00', 'dueDate': '2026-09-19T00:00:00+00:00'}


Subscriptions

Acronis Acronis Backup Backup Extension For Plesk Backup Plugin For Cpanel \& Whm Backup Plugin For Directadmin
Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Acronis

Published:

Updated: 2026-09-18T14:33:42.532Z

Reserved: 2026-09-09T14:04:36.755Z

Link: CVE-2026-87886

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-09-17T23:18:53.763

Modified: 2026-09-18T15:17:17.203

Link: CVE-2026-87886

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-18T12:30:07Z

Weaknesses