CVE-2017-5394: Mozilla Firefox vulnerability

CVE-2017-5394: A location bar spoofing attack where the location bar of loaded page will be shown over the content of anot...

A location bar spoofing attack where the location bar of loaded page will be shown over the content of another tab due to a series of JavaScript events combined with fullscreen mode. Note: This issue only affects Firefox for Android. Other operating systems are not affected. This vulnerability affects Firefox < 51.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 5, 2024, 14:55 UTC (UTC+00:00)

Security readout for executives and security teams

This issue could let a malicious page make Firefox for Android show misleading address-bar information, increasing phishing risk. It is limited to old Firefox for Android versions before 51. The provided sources do not show server compromise, data theft by itself, or impact on desktop Firefox or other operating systems. Exposure is most likely in unmanaged or legacy Android devices still running Firefox for Android versions earlier than 51. Modern managed fleets should have low exposure if mobile browsers are kept current. Prioritize as a legacy mobile phishing exposure, not an enterprise-wide emergency. Remediate through browser update enforcement and mobile device hygiene, especially for users accessing sensitive accounts from Android devices. Mitigation focus: Upgrade Firefox for Android to version 51 or later.; Confirm managed Android devices block or update obsolete Firefox builds.; Review Mozilla advisory MFSA2017-01 for vendor guidance..

Prepared: Jun 7, 2026, 06:44 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 11, 2018, 21:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://bugzilla.mozilla.org/show_bug.cgi?id=1222798CVE reference · x_refsource_CONFIRM
https://www.mozilla.org/security/advisories/mfsa2017-01/CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

MozillaFirefoxunspecifiedListed

Weakness

CWE details

No CWE listed

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