Vulnerability Intelligence Report
Mozilla Firefox Security Feature Bypass Vulnerability
CVE-2015-4495
The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to bypass the Same Origin Policy, and read arbitrary files or gain privileges, via vectors involving crafted JavaScript code and a native setter, as exploited in the wild in August 2015.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
8.8
HIGH
Exploitability:2.9
Impact Score:5.9
EPSS Probability:70.23%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-346 ↗CWE-346 Origin Validation Error
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| mozilla | firefox | all |
| mozilla | firefox_os | all |
| oracle | solaris | 11.3 |
| canonical | ubuntu_linux | 12.04, 14.04, 15.04 |
| redhat | enterprise_linux_desktop | 5.0, 6.0, 7.0 |
| redhat | enterprise_linux_eus | 6.7, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.7 |
| redhat | enterprise_linux_server | 5.0, 6.0, 7.0 |
| redhat | enterprise_linux_server_aus | 7.3, 7.4, 7.6, 7.7 |
| redhat | enterprise_linux_server_tus | 7.3, 7.6, 7.7 |
| redhat | enterprise_linux_workstation | 5.0, 6.0, 7.0 |
| suse | linux_enterprise_debuginfo | 11 |
| opensuse | opensuse | 13.1, 13.2 |
| suse | linux_enterprise_desktop | 11, 12 |
| suse | linux_enterprise_server | 11, 12 |
| suse | linux_enterprise_software_development_kit | 11, 12 |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Mozilla Corporation · Vendor · USA |
| Reserved | 2015-06-10T00:00:00 |
| Published | 2015-08-08T00:00:00 |
| Patch Date | 2015-08-06 |
| Last Updated | 2025-10-21T23:55:58 |
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