MSRXMSRXSecurity
Vulnerabilities / CVE-2026-87886

CVE-2026-87886

Published 2026-09-17 · published (not yet in NVD)

CVE-2026-87886

Exploited in the wild: CISA added it to the Known Exploited Vulnerabilities catalog on 2026-09-16, with a fix-by date of 2026-09-19. Patch it first.

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

7.8 HIGH
CVSS 3.0 · CNA
0.2%
chance of exploitation in the next 30 days (EPSS; higher than 14% of CVEs)

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.

Scores

Affected products

  • Acronis Acronis Backup plugin for cPanel & WHM: unspecified to < 1.9.3.1021
  • Acronis Acronis Backup extension for Plesk: unspecified to < 1.8.11.638
  • Acronis Acronis Backup plugin for DirectAdmin: unspecified to < 1.2.3.238

Weakness: CWE-276

1 references (advisories, patches, write-ups)

Sources: CVE.org, FIRST EPSS. Missing ones did not answer or have no record yet.

Look up another CVECheck your dependenciesScan a website