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CVE-2015-4495

8.8 · HIGHActively Exploited

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…

Published Aug 8, 2015mozillaCWE-346EPSS 68.56%

Overview

CVE-2015-4495 is a high-severity vulnerability affecting mozilla firefox. It was published on August 8, 2015 and has a CVSS 3.1 base score of 8.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from mozilla. Update firefox to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
mozillafirefox>= 0, < 39.0.3Affected
mozillafirefox_os>= 0, < 2.2Affected

References

Reflists.opensuse.org/opensuse-security-announce/2015-08/msg00009.htmlReflists.opensuse.org/opensuse-security-announce/2015-08/msg00010.htmlReflists.opensuse.org/opensuse-security-announce/2015-08/msg00014.htmlReflists.opensuse.org/opensuse-security-announce/2015-08/msg00015.htmlReflists.opensuse.org/opensuse-security-announce/2015-08/msg00021.htmlReflists.opensuse.org/opensuse-security-announce/2015-09/msg00016.htmlRefrhn.redhat.com/errata/RHSA-2015-1581.htmlRefwww.mozilla.org/security/announce/2015/mfsa2015-78.htmlRefwww.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlRefwww.securityfocus.com/bid/76249

How CyberStrike helps

Frequently asked questions

What is CVE-2015-4495?

CVE-2015-4495 is a high-severity vulnerability affecting mozilla firefox. It was published on August 8, 2015 and has a CVSS 3.1 base score of 8.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2015-4495?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2015-4495?

Check the references section for vendor advisories and patches from mozilla. Update firefox to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2015-4495?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-4495 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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