# CVE-2026-87886

## Summary

- **CVE ID:** CVE-2026-87886
- **Severity:** HIGH
- **CVSS Score:** 7.8 (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-276
- **Published:** Sep 17, 2026
- **Last Modified:** Sep 18, 2026

## 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.

## Affected Products

- Acronis — Acronis Backup plugin for cPanel & WHM (unspecified)
- Acronis — Acronis Backup extension for Plesk (unspecified)
- Acronis — Acronis Backup plugin for DirectAdmin (unspecified)

## References

- [CNA](https://security-advisory.acronis.com/advisories/SEC-10986)
- [CISA-ADP](https://www.cisa.gov/know%20n-exploited-vulnerabilities-catalog?field_cve=CVE-2026-87886)

## Known Exploited Vulnerabilities (KEV)

- **Date Added:** Sep 16, 2026
- **Due Date:** Sep 19, 2026

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._