Buffer overflow in Mozilla Firefox and Firefox for Android - CVE-2026-8093
Published: May 7, 2026
Vulnerability identifier: #VU130589
CSH Severity: High
CVSS v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2026-8093
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Firefox for Android
Mozilla Firefox
Firefox for Android
Detailed vulnerability description
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.
How to mitigate CVE-2026-8093
Install updates from vendor's website.
Sources
- 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