Buffer overflow in Firefox for Android and Mozilla Firefox - CVE-2026-14241
Published: June 30, 2026
Vulnerability identifier: #VU135995
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-14241
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code on the target system.
Affected software
Firefox for Android
Mozilla Firefox
Mozilla Firefox
How to mitigate CVE-2026-14241
Install updates from vendor's website.
Firefox for Android - update to 152.0.4
Mozilla Firefox - update to 152.0.4
Mozilla Firefox - update to 152.0.4
External References
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-62/
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2043241
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2045514
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2045576
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2045623
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2045765
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2049409
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2049840