CVE-2026-87886 — HIGH (7.8)

Q: How severe is CVE-2026-87886?

CVE-2026-87886 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-87886?

Check the references section above for vendor advisories and patch information. Affected products include: Acronis Acronis Backup, Linux Linux Kernel.

Vulnerability 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.

CVSS Score

7.8

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Acronis	Acronis Backup	< 1.2.3
Linux	Linux Kernel	-

Related Weaknesses (CWE)

CWE-276

References

https://security-advisory.acronis.com/advisories/SEC-10986Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-US Government Resource

FAQ

What is CVE-2026-87886?

CVE-2026-87886 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 P...

How severe is CVE-2026-87886?

CVE-2026-87886 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-87886?

Check the references section above for vendor advisories and patch information. Affected products include: Acronis Acronis Backup, Linux Linux Kernel.