CASCACascade Atlas

Evidence dossier

CVE-2015-4495

CVE-2015-4495

67.5–93.8Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

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.

State
PUBLISHED
Published
Aug 8, 2015
Updated
Oct 21, 2025
Evidence coverage
72%
CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS70.23%

2026-07-18 · v2026.06.15 · percentile 99.3%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

mozillaoriginal assertion
container

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 KEVoriginal assertion
observed_exploitation

Mozilla Firefox Security Feature Bypass Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.702260000000; percentile 0.993090000000

Applicability

Cited product scope

Trace impact →
n/an/a
[{"status": "affected", "version": "n/a"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*; end excluding 39.0.3supported
Unknown vendorUnknown product
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*; start including 38.0; end excluding 38.1.1supported
Unknown vendorUnknown product
cpe:2.3:a:suse:linux_enterprise_debuginfo:11:sp1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:suse:linux_enterprise_debuginfo:11:sp2:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:suse:linux_enterprise_debuginfo:11:sp3:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:suse:linux_enterprise_debuginfo:11:sp4:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:mozilla:firefox_os:*:*:*:*:*:*:*:*; end excluding 2.2supported
Unknown vendorUnknown product
cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_eus:6.7:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_eus:7.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_eus:7.2:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_eus:7.3:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:suse:linux_enterprise_desktop:11:sp3:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:suse:linux_enterprise_desktop:11:sp4:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:suse:linux_enterprise_desktop:12:-:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:suse:linux_enterprise_server:11:sp1:*:*:ltss:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:ltss:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:-:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:vmware:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:suse:linux_enterprise_server:11:sp4:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:suse:linux_enterprise_server:12:-:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:suse:linux_enterprise_software_development_kit:11:sp3:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:suse:linux_enterprise_software_development_kit:11:sp4:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:suse:linux_enterprise_software_development_kit:12:-:*:*:*:*:*:*supported

Assessments

CVSS by origin

8.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.3
nvd@nist.govCVSS 2.0 · role PrimaryAV:N/AC:M/Au:N/C:P/I:N/A:N
8.8
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8
CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.