CVE-2018-15898: The Subsonic Music Streamer application 4.4 for Android has Improper Certificate Validation of the Subsonic se

This month

MEDIUM 5.9REMOTEDOWNGRADE

CVE-2018-15898 is a medium-severity flaw (CVSS 5.9) affecting music streamer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Subsonic Music Streamer application 4.4 for Android has Improper Certificate Validation of the Subsonic server certificate, which might allow man-in-the-middle attackers to obtain interaction data.

Why this priority

Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-295
Published	2018-09-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: subsonic

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-09-11 21:29 UTCPublished CVE record published
2026-06-17 01:43 UTCUpdated Record last modified

subsonic music streamer DOWNGRADE

Affected: 4.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.4

1. Check installed version

apt-cache policy music-streamer || rpm -q music-streamer || music-streamer --version

2. No fixed release: DOWNGRADE to a release before 4.4 (Debian / Ubuntu)

apt-cache madison music-streamer sudo apt install music-streamer=<VERSION_BEFORE_4.4> sudo apt-mark hold music-streamer

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list music-streamer sudo dnf downgrade music-streamer-<VERSION_BEFORE_4.4> sudo dnf versionlock add music-streamer

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-15898?

music streamer: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-15898 being exploited?

CVE-2018-15898 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-15898 affect?

CVE-2018-15898 affects music streamer. Severity is medium (CVSS 5.9). The Subsonic Music Streamer application 4.4 for Android has Improper Certificate Validation of the Subsonic server certificate, which might allow man-in-the-middle attackers to obtain interaction data.

How urgent is CVE-2018-15898?

Priority 41/100. Remotely exploitable, no login, no user action

Software pages

Android vulnerabilities

References

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