CVE-2025-12686 Memory corruption in BeeStation OS
Remote attackers can execute arbitrary code via a buffer overflow in the AdminCenter component of Synology BeeStation OS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-12686?
CVE-2025-12686 is a critical memory corruption vulnerability in Synology BeeStation OS, published on 27 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-120
Which versions are affected by CVE-2025-12686?
It affects 1 product.
Products include Synology Beestation Os.
How do I fix CVE-2025-12686?
No fix has been published for CVE-2025-12686 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-12686 being exploited?
There is no known exploitation of CVE-2025-12686 in the wild and no public exploit code.
Other vulnerabilities in Synology BeeStation OS
Sources
Also known as GHSA-9f49-q57w-cw53.