CVE-2026-87886

7.8 highKEVEPSS 0.2%

High (7.8) in Acronis Backup. In CISA KEV since 2026-09-16. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.0

7.8 high

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-31)
CISA KEV: listed 2026-09-16, due 2026-09-19
CWE: CWE-276
Published: 2026-09-17
Modified: 2026-09-18
Record from: the NVD, synced 2026-10-19

Affected

acronis:acronis_backup

References

https://security-advisory.acronis.com/advisories/SEC-10986
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-87886

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