Cyber Resilience

CVE-2025-12686

CriticalUpdated

Published: 27 May 2026

Published
27 May 2026
Modified
05 June 2026
KEV Added
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Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0276 84.5th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2025-12686 is a critical-severity Classic Buffer Overflow (CWE-120) vulnerability in Synology Beestation Os. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 15.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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.

CWE(s)
CWE-120

Related Threats

CVEs Like This One

CVE-2024-10441Same product: Synology Beestation Os
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CVE-2024-10444Same product class: NAS / storage appliance
CVE-2026-3091Same product class: NAS / storage appliance
CVE-2024-50631Same product class: NAS / storage appliance
CVE-2025-30028Same product class: NAS / storage appliance
CVE-2024-50630Same product class: NAS / storage appliance
CVE-2023-52945Same product class: NAS / storage appliance
CVE-2024-11131Same product class: NAS / storage appliance
CVE-2022-49036Same product class: NAS / storage appliance

Affected Assets

synology
beestation os
1.0 — 1.3.2

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References