CVE-2015-2809
The Multicast DNS (mDNS) responder in Synology DiskStation Manager (DSM) before 3.1 inadvertently responds to unicast queries with source addresses that are not link-local, which allows remote attackers to cause a denial of service (traffic…
Does this matter?
Lower severity and a low EPSS score (3.55%). Track it; it rarely justifies an emergency change on its own.
Description
The Multicast DNS (mDNS) responder in Synology DiskStation Manager (DSM) before 3.1 inadvertently responds to unicast queries with source addresses that are not link-local, which allows remote attackers to cause a denial of service (traffic amplification) or obtain potentially sensitive information via port-5353 UDP packets to the Avahi component.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
- EPSS
- 3.55% probability · 89th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- synology/diskstation manager
- Source
- cve@mitre.org
EPSS 3.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.kb.cert.org/vuls/id/550620Third Party Advisory, US Government Resource
- http://www.kb.cert.org/vuls/id/BLUU-9TLSHDThird Party Advisory, US Government Resource
- http://www.securityfocus.com/bid/73683
- http://www.kb.cert.org/vuls/id/550620Third Party Advisory, US Government Resource
- http://www.kb.cert.org/vuls/id/BLUU-9TLSHDThird Party Advisory, US Government Resource
- http://www.securityfocus.com/bid/73683
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.