CVE-2026-92045
CRITICALCVSS 9.6/10EPSS 0.32%
Last modified
CVE-2026-92045 is a critical-severity vulnerability rated 9.6/10 on the CVSS scale. Sandbox escape due to incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.
Description
Sandbox escape due to incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 153.3.0 |
| Mozilla | Firefox | >= 154.0.0, < 156.0.0 |
| Mozilla | Thunderbird | < 153.3.0 |
| Mozilla | Thunderbird | >= 154.0, < 156.0 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2054622Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2026-90/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-93/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-94/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-96/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-92045?
Sandbox escape due to incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
How severe is CVE-2026-92045?
CVE-2026-92045 has a CVSS score of 9.6/10 (CRITICAL severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.
How do I fix CVE-2026-92045?
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-2026-9204GitLab has remediated an issue in GitLab CE/EE affecting all…6.5
- CVE-2026-92040Use-after-free in the JavaScript: WebAssembly component. Thi…8.8
- CVE-2026-92041Mitigation bypass in the DOM: Networking component. This vul…9.1
- CVE-2026-92042Race condition in the DOM: Content Processes component. This…7.5
- CVE-2026-92043Privilege escalation due to incorrect boundary conditions in…8.8
- CVE-2026-92044Information disclosure in the Networking: HTTP component. Th…7.5
- CVE-2026-92046Use-after-free in the Graphics component. This vulnerability…8.8
- CVE-2026-92047Privilege escalation in the Crash Reporting component. This …8.8
- CVE-2026-92048Sandbox escape due to incorrect boundary conditions in the W…9
- CVE-2026-92049Use-after-free in the Widget: Win32 component. This vulnerab…8.8
- CVE-2026-9205IBM Langflow OSS contains a weak cryptographic key derivatio…9.8
- CVE-2026-92050Sandbox escape due to race condition in the XPConnect compon…9.1
Are you affected by CVE-2026-92045?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST