CVE-2026-8093

high

Description

Memory safety bugs present in Firefox 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.2 and Thunderbird 150.0.2.

References

https://www.mozilla.org/security/advisories/mfsa2026-43/

https://www.mozilla.org/security/advisories/mfsa2026-40/

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8093.json

https://bugzilla.redhat.com/show_bug.cgi?id=2467701

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1981270%2C2027154%2C2028332%2C2029327%2C2029894%2C2032189%2C2034837%2C2035968%2C2036256

https://access.redhat.com/security/cve/CVE-2026-8093

Details

Source: Mitre, NVD

Published: 2026-05-07

Updated: 2026-07-15

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00015