Critical RCE Vulnerability in Synology BeeStation Demonstrated at Pwn2Own
Synology addressed a critical remote code execution vulnerability (CVE-2025-12686) in its BeeStation product after the flaw was publicly demonstrated at the Pwn2Own Ireland 2025 competition. The vulnerability, which received a CVSS score of 9.8, stems from improper buffer size checks that allow remote attackers to execute arbitrary code on affected devices. Synology has released patches for all versions of BeeStation OS, urging users to upgrade to version 1.3.2-65648 or later to mitigate the risk.
The flaw was one of several zero-days showcased at Pwn2Own Ireland 2025, where researchers were awarded over $1 million for discovering 73 unique vulnerabilities across a range of consumer and enterprise devices. The event highlighted the ongoing risks posed by zero-day vulnerabilities in widely used storage and smart home products. Other vendors, including QNAP, also issued patches for vulnerabilities revealed during the competition.

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How this story unfolded
2 events from the most recent confirmed update back to the earliest known activity.
Synology patches BeeStation flaw CVE-2025-12686
Synology released a patch for the critical BeeStation remote code execution flaw CVE-2025-12686 after it was shown at Pwn2Own Ireland 2025. The patching action was reported the following day.
Pwn2Own Ireland 2025 reveals Synology BeeStation RCE zero-day
A critical remote code execution vulnerability in Synology BeeStation, later tracked as CVE-2025-12686, was demonstrated at the Pwn2Own Ireland 2025 contest. The supplied reporting identifies it as a zero-day affecting the product.
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Synology patches critical BeeStation RCE flaw shown at Pwn2Own Ireland 2025
securityaffairs.com
Open sourceCritical Synology BeeStation Zero-Day (CVE-2025-12686) Found at Pwn2Own Allows Remote Code Execution
securityonline.info
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