---
id: CVE-2025-64393
title: >-
  This vulnerability in Veeam Backup & Replication allows a Backup Viewer to
  execute arbitrary code as SYSTEM on the backup server.
summary: >-
  This vulnerability in Veeam Backup & Replication allows a Backup Viewer to
  execute arbitrary code as SYSTEM on the backup server.
severity: critical
cvss: 9.4
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'
cwe:
  - CWE-502
vendor: Veeam
product: Backup and Replication
affected:
  - backup_and_replication >= 12 < 12.3.2.4934
published: '2026-10-07'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T09:17:04.273'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-64393'
references:
  - url: 'https://www.veeam.com/KB4934'
    label: support@hackerone.com
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-10-07T09:22:30.524Z'
---

## Overview

This vulnerability in Veeam Backup & Replication allows a Backup Viewer to execute arbitrary code as SYSTEM on the backup server.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.