CVE-2015-4492
UnknownEPSS 5.05%
Last modified
CVE-2015-4492 is a vulnerability of currently unknown severity. Use-after-free vulnerability in the XMLHttpRequest::Open implementation in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 might allow remote attackers to execute arbitrary code via a SharedWorker object that makes recursive calls to the open method of an XMLHttpRequest object.. EPSS estimates a 5.05% chance of exploitation in the next 30 days.
Description
Use-after-free vulnerability in the XMLHttpRequest::Open implementation in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 might allow remote attackers to execute arbitrary code via a SharedWorker object that makes recursive calls to the open method of an XMLHttpRequest object.
Metrics
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Oracle | Solaris | 11.3 |
| Mozilla | Firefox | <= 39.0.3 |
| Mozilla | Firefox | 38.0 |
| Mozilla | Firefox | 38.0.1 |
| Mozilla | Firefox | 38.0.5 |
| Mozilla | Firefox | 38.1.0 |
| Canonical | Ubuntu Linux | 12.04 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 15.04 |
| Opensuse | Opensuse | 13.1 |
| Opensuse | Opensuse | 13.2 |
References
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlThird Party Advisory
- http://www.ubuntu.com/usn/USN-2702-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2702-2Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1185820Issue Tracking
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlThird Party Advisory
- http://www.ubuntu.com/usn/USN-2702-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2702-2Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1185820Issue Tracking
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2015-4492?
Use-after-free vulnerability in the XMLHttpRequest::Open implementation in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 might allow remote attackers to execute arbitrary code via a SharedWorker object that makes recursive calls to the open method of an XMLHttpRequest object.
How severe is CVE-2015-4492?
Severity scoring for CVE-2015-4492 is pending analysis. The EPSS model estimates a 5.05% probability of exploitation in the next 30 days.
How do I fix CVE-2015-4492?
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.
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Are you affected by CVE-2015-4492?
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