CVE-2026-8945
HIGHCVSS 7.5/10EPSS 0.37%
Last modified
CVE-2026-8945 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Sandbox escape in Firefox and Firefox Focus for Android. This vulnerability was fixed in Firefox 151.. EPSS estimates a 0.37% chance of exploitation in the next 30 days.
Description
Sandbox escape in Firefox and Firefox Focus for Android. This vulnerability was fixed in Firefox 151.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 151.0.0 |
| Mozilla | Firefox Focus | < 151.0 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2003171Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2026-46/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2026-8945?
Sandbox escape in Firefox and Firefox Focus for Android. This vulnerability was fixed in Firefox 151.
How severe is CVE-2026-8945?
CVE-2026-8945 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.
How do I fix CVE-2026-8945?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-8939The Search Simple Fields plugin for WordPress is vulnerable …4.3
- CVE-2026-8940The WP Meta Sort Posts plugin for WordPress is vulnerable to…4.3
- CVE-2026-8941The CDN Linker lite plugin for WordPress is vulnerable to Cr…4.3
- CVE-2026-8942The MetaMagic SEO Plugin plugin for WordPress is vulnerable …4.3
- CVE-2026-8943The GoStats for WordPress plugin for WordPress is vulnerable…4.3
- CVE-2026-8944The Plugin for Google Analytics by IO technologies plugin fo…4.3
- CVE-2026-8946Incorrect boundary conditions in the Audio/Video: Web Codecs…7.5
- CVE-2026-8947Use-after-free in the DOM: Bindings (WebIDL) component. This…7.3
- CVE-2026-8948Same-origin policy bypass in the DOM: Networking component. …9.1
- CVE-2026-8949Integer overflow in the Widget: Win32 component. This vulner…7.5
- CVE-2026-8950Same-origin policy bypass in the Networking: HTTP component.…9.3
- CVE-2026-8951Spoofing issue in the Toolbar component in Firefox for Andro…6.5
Are you affected by CVE-2026-8945?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST