What’s Vulnerable › Vulnerabilities

CVE-2017-5414

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-06-11 · updated 2026-06-17
• Weakness: CWE-200

Description

The file picker dialog can choose and display the wrong local default directory when instantiated. On some operating systems, this can lead to information disclosure, such as the operating system or the local account name. This vulnerability affects Firefox < 52 and Thunderbird < 52.

Affected products

• Mozilla Firefox: before 52.0 — fixed in 52.0
• Mozilla Thunderbird: before 52.0 — fixed in 52.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 52.0; Mozilla Thunderbird 52.0. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/96692
• http://www.securitytracker.com/id/1037966
• https://bugzilla.mozilla.org/show_bug.cgi?id=1319370
• https://www.mozilla.org/security/advisories/mfsa2017-05/
• https://www.mozilla.org/security/advisories/mfsa2017-09/
• http://www.securityfocus.com/bid/96692
• http://www.securitytracker.com/id/1037966
• https://bugzilla.mozilla.org/show_bug.cgi?id=1319370
• https://www.mozilla.org/security/advisories/mfsa2017-05/
• https://www.mozilla.org/security/advisories/mfsa2017-09/

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