CVE-2014-5683: The Piano Teacher (aka com.rubycell.pianisthd) application 20140730 for Android does not verify X.509 certific

Routine

MEDIUM 5.4DOWNGRADE

CVE-2014-5683 is a medium-severity flaw (CVSS 5.4) affecting piano teacher. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Piano Teacher (aka com.rubycell.pianisthd) application 20140730 for Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.4 (Medium)
EPSS exploit chance	0.3% (top 81%)
CISA exploited list	No
Weakness	CWE-310
Published	2014-09-09
Last modified	2026-06-17

Publisher (CNA): CERT/CC · Vendor: rubycell

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

Am I affected?

Timeline

2014-09-09 01:55 UTCPublished CVE record published
2026-06-17 00:11 UTCUpdated Record last modified

rubycell piano teacher DOWNGRADE

Affected: 20140730

Fixed in: no fixed release known

Safe to downgrade to: a release before 20140730

1. Check installed version

apt-cache policy piano-teacher || rpm -q piano-teacher || piano-teacher --version

2. No fixed release: DOWNGRADE to a release before 20140730 (Debian / Ubuntu)

apt-cache madison piano-teacher sudo apt install piano-teacher=<VERSION_BEFORE_20140730> sudo apt-mark hold piano-teacher

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

dnf --showduplicates list piano-teacher sudo dnf downgrade piano-teacher-<VERSION_BEFORE_20140730> sudo dnf versionlock add piano-teacher

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-2014-5683?

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

Is CVE-2014-5683 being exploited?

CVE-2014-5683 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-2014-5683 affect?

CVE-2014-5683 affects piano teacher. Severity is medium (CVSS 5.4). The Piano Teacher (aka com.rubycell.pianisthd) application 20140730 for Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted ce

How urgent is CVE-2014-5683?

Priority 24/100. No elevated risk signals yet.

Software pages

Android vulnerabilities

References

← Back to latest CVEs