CVE-2018-5109

Name: CVE-2018-5109
Creator: NVD / NIST
Published: 2018-06-11T21:29:13.203+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.59%

Last modified Jun 17, 2026

CVE-2018-5109 is a vulnerability of currently unknown severity. An audio capture session can started under an incorrect origin from the site making the capture request. Users are still prompted to allow the request but the prompt can display the wrong origin, leading to user confusion about which site is making the request to capture an audio stream. EPSS estimates a 0.59% chance of exploitation in the next 30 days.

Description

An audio capture session can started under an incorrect origin from the site making the capture request. Users are still prompted to allow the request but the prompt can display the wrong origin, leading to user confusion about which site is making the request to capture an audio stream. This vulnerability affects Firefox < 58.

Metrics

EPSS Probability

0.59%

43.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-346

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	<= 57.0.4
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	17.10

References

http://www.securityfocus.com/bid/102786Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040270Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1405599Issue Tracking, Permissions Required
https://usn.ubuntu.com/3544-1/Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-02/Vendor Advisory
http://www.securityfocus.com/bid/102786Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040270Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1405599Issue Tracking, Permissions Required
https://usn.ubuntu.com/3544-1/Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-02/Vendor Advisory

Timeline

Published: Jun 11, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-5109?

How severe is CVE-2018-5109?

Severity scoring for CVE-2018-5109 is pending analysis. The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.

How do I fix CVE-2018-5109?

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-2018-5109?

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

Scan your code now

Source: NVD / NIST