CVE-2026-87886 KEV
7.8
HIGH · CVSS 3.0 · EPSS 0.2% (pctl 13)
Patch first
On CISA KEV — known exploited in the wild, due 2026-09-19.
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.
Scoring
| CVSS | 7.8 (HIGH, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 0.23% — more likely to be exploited than 13% of all CVEs |
| Weakness | CWE-276 |
| On CISA KEV | yes — remediate by 2026-09-19 |
| Public exploit | none known |
| Published | 2026-09-17 |
| Last modified | 2026-09-18 |
CISA KEV
| Name | Acronis Backup Incorrect Default Permissions Vulnerability |
|---|---|
| Added | 2026-09-16 |
| Due | 2026-09-19 |
| Vendor / product | Acronis / Backup |
| Ransomware use | none reported |
Affected (2)
| Vendor | Product |
|---|---|
| acronis | acronis backup |
| linux | linux kernel |
References
→ the Explorer · watch your stack · NVD