Security readout for executives and security teams
This Firefox issue let a malicious page frame the RSS feed preview page and manipulate the user interface to trick Windows users into downloading and running an executable from a temporary directory. It required user interaction and affected Firefox versions before 64 on Windows only. Exposure is likely limited to Windows endpoints still running Firefox versions earlier than 64. Non-Windows systems are stated as unaffected. Modern managed fleets are unlikely to be exposed unless legacy Firefox remains installed. Treat this as a legacy browser hygiene issue, not an emergency based on the provided evidence. Prioritize remediation if Windows endpoints can still run Firefox before 64, especially where users can download and execute files. Mitigation focus: Upgrade affected Windows Firefox installations to Firefox 64 or later.; Prefer the current supported Firefox release where business constraints allow.; Remove obsolete Firefox versions from managed Windows endpoints..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2018-18496 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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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://www.mozilla.org/security/advisories/mfsa2018-29/CVE reference · x_refsource_CONFIRM
- https://bugzilla.mozilla.org/show_bug.cgi?id=1422231CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
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