CVE-2015-2809

Name: CVE-2015-2809
Creator: NVD / NIST
Published: 2015-04-01T02:00:35.97+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.67%

Last modified Jun 17, 2026

CVE-2015-2809 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 3.67% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

3.67%

88.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Synology	Diskstation Manager	<= 3.0

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

Timeline

Published: Apr 1, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-2809?

How severe is CVE-2015-2809?

Severity scoring for CVE-2015-2809 is pending analysis. The EPSS model estimates a 3.67% probability of exploitation in the next 30 days.

How do I fix CVE-2015-2809?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-2809?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST