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CVE-2015-4495

HIGH

8.8

CVSS Score

Published: August 8, 2015 at 12:00 AM UTC

Updated: June 17, 2026 at 12:27 AM UTC

15 products affected across 6 vendorsUbuntu LinuxFirefoxEnterprise Linux Desktop

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Severity

HIGH8.8

Exploitation

CISA KEV

Exploit prediction

EPSS 69%

SSVC

Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score68.6%

EPSS (Exploit Prediction Scoring System) estimates a 68.6% chance this CVE is exploited in the wild within the next 30 days — higher than 99% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

Moxilla Firefox allows remote attackers to bypass the Same Origin Policy to read arbitrary files or gain privileges.

Required Action

Apply updates per vendor instructions.

Ransomware Use

Unknown

Added to KEV

May 25, 2022

Remediation Due

Jun 15, 2022

1594 days overdue

Notes

https://nvd.nist.gov/vuln/detail/CVE-2015-4495

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ubuntu Linux · Canonicalrubygems

95%

12.04 14.04 15.04

Firefox · Mozilla

95%

v < 39.0.338.0 ≤ v < 38.1.1

Affected range stops below 38.1.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 39.0.3, so it looks safe — our inference, not a vendor statement

Firefox OS · Mozilla

95%

v < 2.2

Affected range stops below 2.2, so it looks safe — our inference, not a vendor statement

openSUSE · openSUSE

95%

Solaris · Oraclerubygems

95%

Enterprise Linux Desktop · Red Hatrubygems

95%

Enterprise Linux Eus · Red Hatrpm

95%

6.7 7.1 7.2 7.3 7.4 7.5 7.6 7.7

Enterprise Linux Server · Red Hatrubygems

95%

Enterprise Linux Server Aus · Red Hatrubygems

95%

7.3 7.4 7.6 7.7

Enterprise Linux Server Tus · Red Hatrubygems

95%

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (18)

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory

Source: [email protected]

http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00009.html

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory

Source: [email protected]

http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00010.html

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory

Source: [email protected]

http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.html

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory

Source: [email protected]

http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.html

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory

Source: [email protected]

http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory

Source: [email protected]

http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00016.html

Vendor Advisoryx_refsource_REDHATThird Party Advisory

Source: [email protected]

http://rhn.redhat.com/errata/RHSA-2015-1581.html

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

http://www.mozilla.org/security/announce/2015/mfsa2015-78.html

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCISA-ADP

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

NVD-CWE-noinfoCWE-346

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