CVE-2017-5463: Mozilla Firefox vulnerability

CVE-2017-5463: Android intents can be used to launch Firefox for Android in reader mode with a user specified URL.

Android intents can be used to launch Firefox for Android in reader mode with a user specified URL. This allows an attacker to spoof the contents of the addressbar as displayed to users. Note: This attack only affects Firefox for Android. Other operating systems are not affected. This vulnerability affects Firefox < 53.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 5, 2024, 15:04 UTC (UTC+00:00)

Security readout for executives and security teams

This is a Firefox for Android address-bar spoofing issue. A malicious Android intent could open Firefox in reader mode with a chosen URL and make the address bar display misleading content. The main business risk is phishing or user deception on unmanaged or outdated Android devices running Firefox before version 53. Exposure is limited to Android devices running Firefox for Android earlier than version 53. Organizations with managed mobile fleets, BYOD Android users, or legacy APK installations should treat those devices as the relevant population. Treat this as a targeted mobile phishing risk, not a critical infrastructure compromise. Prioritize cleanup where Android Firefox is present in managed or BYOD environments, especially for users handling credentials, finance workflows, or sensitive customer data. Mitigation focus: Update Firefox for Android to version 53 or later.; Remove or replace legacy Firefox for Android builds below version 53.; Use mobile device management to enforce current browser versions..

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=1338867CVE reference · x_refsource_CONFIRM
https://www.mozilla.org/security/advisories/mfsa2017-10/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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