CVE-2018-12391

Name: CVE-2018-12391
Creator: NVD / NIST
Published: 2019-02-28T18:29:00.477+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.09%

Last modified Jun 17, 2026

CVE-2018-12391 is a vulnerability of currently unknown severity. During HTTP Live Stream playback on Firefox for Android, audio data can be accessed across origins in violation of security policies. Because the problem is in the underlying Android service, this issue is addressed by treating all HLS streams as cross-origin and opaque to access. EPSS estimates a 2.09% chance of exploitation in the next 30 days.

Description

During HTTP Live Stream playback on Firefox for Android, audio data can be accessed across origins in violation of security policies. Because the problem is in the underlying Android service, this issue is addressed by treating all HLS streams as cross-origin and opaque to access. *Note: this issue only affects Firefox for Android. Desktop versions of Firefox are unaffected.*. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.

Metrics

EPSS Probability

2.09%

79.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 63.0
Mozilla	Firefox Esr	< 60.3
Mozilla	Thunderbird	< 60.3

References

http://www.securityfocus.com/bid/105718Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/105769Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041944Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1478843Issue Tracking, Permissions Required, Vendor Advisory
https://security.gentoo.org/glsa/201811-13Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-26/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-27/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-28/Vendor Advisory
http://www.securityfocus.com/bid/105718Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/105769Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041944Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1478843Issue Tracking, Permissions Required, Vendor Advisory
https://security.gentoo.org/glsa/201811-13Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-26/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-27/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-28/Vendor Advisory

Timeline

Published: Feb 28, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-12391?

How severe is CVE-2018-12391?

Severity scoring for CVE-2018-12391 is pending analysis. The EPSS model estimates a 2.09% probability of exploitation in the next 30 days.

How do I fix CVE-2018-12391?

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-2018-12391?

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

Scan your code now

Source: NVD / NIST