SARA / Free Tools / CVE / CVE-2015-4495

CVE-2015-4495 — Mozilla Firefox Security Feature Bypass Vulnerability

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

CVSS
EPSS
71.57% (top 1.30%)
CWE
Published
2015-08-08T00:00:00.000Z
Last modified
2025-10-21T23:55:58.479Z
CVSS vector
CISA KEV — Actively Exploited
Added to KEV
2022-05-25
BOD 22-01 due
2022-06-15
Ransomware use
Unknown

01What is this vulnerability?

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.

02Affected products

VendorProductVersions
na / n/an/a

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2022-05-25. Ransomware use: Unknown.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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