CVE-2021-23958
MEDIUMFirefox < 85.0 - Unintended Information Leak via Screen Sharing State Transfer
Title source: llmDescription
The browser could have been confused into transferring a screen sharing state into another tab, which would leak unintended information. This vulnerability affects Firefox < 85.
References (2)
Core 2
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2021-03/
Issue Tracking, Permissions Required, Vendor Advisory x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=1642747
Scores
CVSS v3
6.5
EPSS
0.0032
EPSS Percentile
55.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Details
CWE
CWE-668
Status
published
Products (1)
mozilla/firefox
< 85.0
Published
Feb 26, 2021
Tracked Since
Feb 18, 2026