CVE-2024-6607
HIGHFirefox < 128 and Thunderbird < 128 - Use-After-Free via Pointer Lock and Custom Validity Overlay
Title source: llmDescription
It was possible to prevent a user from exiting pointerlock when pressing escape and to overlay customValidity notifications from a `<select>` element over certain permission prompts. This could be used to confuse a user into giving a site unintended permissions. This vulnerability affects Firefox < 128 and Thunderbird < 128.
References (3)
Core 3
Core References
Exploit, Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1694513
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-29/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-32/
Scores
CVSS v3
8.8
EPSS
0.0053
EPSS Percentile
40.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-763
Status
published
Products (2)
mozilla/firefox
< 128.0
mozilla/thunderbird
< 128.0
Published
Jul 09, 2024
Tracked Since
Feb 18, 2026