Buffer overflow in Mozilla Firefox and Firefox for Android - CVE-2026-8093
Published: May 7, 2026
Vulnerability identifier: #VU130589
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-2026-8093
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.
The vulnerability exists due to memory corruption when processing web content. A remote attacker can trigger memory corruption using specially crafted content to execute arbitrary code.
Some of the reported bugs showed evidence of memory corruption.
Affected software
Mozilla Firefox
Firefox for Android
Anolis OS
Mozilla Thunderbird
firefox
Firefox for Android
Anolis OS
Mozilla Thunderbird
firefox
How to mitigate CVE-2026-8093
Install updates from vendor's website.
Mozilla Firefox - update to 150.0.2
Firefox for Android - update to 150.0.2
Mozilla Thunderbird - update to 150.0.2
firefox - update to 140.11.0-1
Firefox for Android - update to 150.0.2
Mozilla Thunderbird - update to 150.0.2
firefox - update to 140.11.0-1
External References
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-40/
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1981270
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2027154
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2028332
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2029327
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2029428
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2029894
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2032189
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2034837
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2035968
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2036256