VulnerabilityModified
CVE-2026-8945
This vulnerability was fixed in Firefox 151.
HIGH 7.5EPSS 0.37%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.37%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Sandbox escape in Firefox and Firefox Focus for Android. This vulnerability was fixed in Firefox 151.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.37% probability · 30th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-693, CWE-653
- Affected
- mozilla/firefox · mozilla/firefox focus
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2003171Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2026-46/Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-8945
- https://bugzilla.redhat.com/show_bug.cgi?id=2479863
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8945.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.