---
id: CVE-2025-12686
title: >-
  Buffer copy without checking size of input ('Classic Buffer Overflow')
  vulnerability in AdminCenter in Synology BeeStation OS before 1.3.2-65648
  allows remote attackers to execute arbitrary code via unspecified vectors.
summary: >-
  Buffer copy without checking size of input ('Classic Buffer Overflow')
  vulnerability in AdminCenter in Synology BeeStation OS before 1.3.2-65648
  allows remote attackers to execute arbitrary code via unspecified vectors.
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-120
vendor: synology
product: beestation_os
affected:
  - 'beestation_os >= 1.0, < 1.3.2'
patched:
  - beestation_os 1.3.2
published: '2026-05-27'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T21:10:00.190'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-12686'
references:
  - url: 'https://www.synology.com/en-global/security/advisory/Synology_SA_25_12'
    label: security@synology.com
tags:
  - nvd
epss: 0.02762
epssPercentile: 0.85741
ingestedAt: '2026-09-30T21:25:07.732Z'
---

## Overview

Buffer copy without checking size of input ('Classic Buffer Overflow') vulnerability in AdminCenter in Synology BeeStation OS before 1.3.2-65648 allows remote attackers to execute arbitrary code via unspecified vectors.

## Affected

- `beestation_os >= 1.0, < 1.3.2`

## Remediation

Upgrade past the affected range:

- `beestation_os 1.3.2`