What is CVE-2019-19251?

CVE-2019-19251 is a medium-severity vulnerability in Last.fm Desktop, classified under Cleartext Transmission of Sensitive Information. CVSS score: 5.3/10. Published 2019-12-10.

How severe is CVE-2019-19251?

Medium severity. CVSS v3 base score is 5.3 out of 10.

RCE in Last.fm Desktop

CVE-2019-19251

The Last.fm desktop app (Last.fm Scrobbler) through 2.1.39 on macOS makes HTTP requests that include an API key without the use of SSL/TLS. Although there is an Enable SSL option, it is disabled by default, and cleartext requests are made as soon as the app starts.

Published 2019-12-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (49.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Last.fm Desktop

Weakness classification (CWE)

References

getsatisfaction.com/lastfm/topics/why-doesnt-the-macos-client-enable-ssl-by-def… (Third Party Advisory)

Frequently asked questions

What is CVE-2019-19251?: CVE-2019-19251 is a medium-severity vulnerability in Last.fm Desktop, classified under Cleartext Transmission of Sensitive Information. CVSS score: 5.3/10. Published 2019-12-10.
How severe is CVE-2019-19251?: Medium severity. CVSS v3 base score is 5.3 out of 10.