Security readout for executives and security teams
CVE-2016-9073 is a Firefox WebExtensions flaw where an extension could bypass security checks, load privileged browser URLs, and potentially escape the extension sandbox. The provided sources identify Firefox versions before 50 as affected. No source in the bundle states active exploitation. Exposure is most likely limited to environments still running Firefox versions earlier than 50, especially where browser extensions can be installed or enabled. Current Firefox deployments are unlikely to be exposed based on the stated affected range. Treat this as a legacy-browser hygiene issue with potentially high impact if old Firefox builds remain in use. Prioritize rapid confirmation and removal of Firefox versions before 50 rather than broad emergency response. Mitigation focus: Upgrade Firefox to version 50 or later where any legacy builds remain.; Remove or disable untrusted WebExtensions on affected Firefox installations.; Check Mozilla’s advisory and Bugzilla entry for vendor-specific guidance..
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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CVE-2016-9073 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://bugzilla.mozilla.org/show_bug.cgi?id=1289273CVE reference · x_refsource_CONFIRM
- https://www.mozilla.org/security/advisories/mfsa2016-89/CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
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