CVE Watch18 de set. de 2026

CVE-2026-87886

Acronis Backup Incorrect Default Permissions Vulnerability

CVSS

7.8

Alta

EPSS

0.2%

p14

KEV

SIM

16 de set. de 2026

Exploit Today

0-100

Publicado: 17 de set. de 2026 · Última mod.: 18 de set. de 2026 · CWE-276

EPSS · 30d

0.2%EPSS · 30 dias0.2%

2026-10-082026-11-05

Ficha do catálogo KEV

Produto

Acronis / Backup

Vulnerabilidade

Acronis Backup Incorrect Default Permissions Vulnerability

Adicionado ao KEV

16 de set. de 2026

Corrigir até

19 de set. de 2026

Uso conhecido em ransomware

Não

Descrição resumida

Acronis Backup plugin for cPanel & WHM and extension for Plesk contains an incorrect default permissions vulnerability that could allow for privilege escalation.

Ação necessária

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.

Notas

https://security-advisory.acronis.com/advisories/SEC-10986 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-87886

Descrição técnica

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.

Referências oficiais

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