Information disclosure in Synology Diskstation Manager
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 amplification) or obtain potentially sensitive information via port-5353 UDP packets to the Avahi component.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.035 (88.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.036 · newest: 0.035 · change: -0.001
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.kb.cert.org/vuls/id/BLUU-9TLSHD (US Government Resource, Third Party Advisory)
- www.securityfocus.com/bid/73683 (vdb-entry)
- www.kb.cert.org/vuls/id/550620 (US Government Resource, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2015-2809?
- CVE-2015-2809 is a vulnerability in Synology Diskstation Manager, classified under Information Disclosure. Published 2015-04-01.
- Is CVE-2015-2809 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.