CVE-2015-4495

HIGH8.8

CISA KEV

Published 2015-08-08 · Updated 2026-06-17 · Source security@mozilla.org

Summary

CVE-2015-4495 is a high-severity (CVSS 8.8) vulnerability in Mozilla Firefox. CISA added it to the Known Exploited Vulnerabilities catalog on May 25, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by June 15, 2022. CISA does not currently list it as used in ransomware campaigns. Mozilla has 13 vulnerabilities in the KEV catalog, 1 of them linked to ransomware.

All 13 known-exploited Mozilla vulnerabilities →

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.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-346

CISA Known-Exploited Vulnerability

Product: Mozilla — Firefox

Name: Mozilla Firefox Security Feature Bypass Vulnerability

Date added: 2022-05-25 · Due: 2022-06-15

Required action: Apply updates per vendor instructions.

References

View on NVD

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