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CVE-2015-4495

is CVE-2015-4495real, exploitable, or a false positive? Here's the community ground truth.

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High · CVSS 8.8EPSS 70.2%CISA KEVCWE-346

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

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.

References

NVD MITRE CVE.org CISA KEV

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Community ground truth

Community verdict

3 verdicts
Not a real issue

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Community real-world severity: High (High 3) — CVSS base score 8.8

In line with its CVSS base score.

Field notes & remediation

Verdicts are the quick signal — notes are the evidence and fixes behind them.

  • 0
    Field note · Marco FerriCurated

    Mozilla Firefox Security Feature Bypass Vulnerability — Moxilla Firefox allows remote attackers to bypass the Same Origin Policy to read arbitrary files or gain privileges. Listed in the CISA KEV catalog (added 2022-05-25) — confirmed exploited in the wild, not theoretical. FIRST EPSS puts the chance of exploitation in the next 30 days at ~70%. Treat it as real and prioritize remediation over triage.

  • 0
    Remediation · Waleed AzizCurated

    Required action for Mozilla Firefox: Apply updates per vendor instructions. CISA set a federal remediation due date of 2022-06-15. After patching, verify the vulnerable path is no longer reachable before closing the finding.

Related CVEs

Same weakness — CWE-346.